114 seqfan posts

Wed May 2 19:19:26 CEST 2012    [seqfan] a(n) is a divider of a[n+a(n)+1]
Sat Apr 28 15:56:40 CEST 2012    [seqfan] Runs of digits of size a(n)
Sat Apr 14 23:53:33 CEST 2012    [seqfan] Jumping back and forth (primes and composites)
Fri Apr 13 08:12:02 CEST 2012    [seqfan] Jumping back and forth (on even and odd terms)
Thu Apr 12 22:29:40 CEST 2012    [seqfan] Re: Small perturbations in the natural flow
Thu Apr 12 18:51:16 CEST 2012    [seqfan] Small perturbations in the natural flow
Wed Mar 7 08:37:05 CET 2012    [seqfan] Re: Recaman's transform of the odd numbers
Tue Mar 6 20:49:20 CET 2012    [seqfan] Re: Recaman's transform of the odd numbers
Tue Mar 6 19:56:50 CET 2012    [seqfan] Re: Recaman's transform of the odd numbers
Tue Mar 6 18:44:06 CET 2012    [seqfan] Recaman's transform of the odd numbers
Wed Feb 15 23:46:56 CET 2012    [seqfan] Re: An "add or make the absolute difference" array
Wed Feb 15 19:09:50 CET 2012    [seqfan] Re: An "add or make the absolute difference" array
Wed Feb 15 15:22:38 CET 2012    [seqfan] An "add or make the absolute difference" array
Mon Jan 9 17:30:17 CET 2012    [seqfan] Re: Array where a permutation of the primes produces all non-primes
Mon Jan 9 14:23:52 CET 2012    [seqfan] Array where a permutation of the primes produces all non-primes
Mon Jan 2 08:57:38 CET 2012    [seqfan] Re: A December quiz with a non-prime array
Fri Dec 30 18:34:14 CET 2011    [seqfan] Re: A December quiz with a non-prime array
Wed Dec 28 20:22:49 CET 2011    [seqfan] Re: A December quiz with a non-prime array
Wed Dec 28 18:03:35 CET 2011    [seqfan] A December quiz with a non-prime array
Thu Dec 22 12:57:35 CET 2011    [seqfan] Re: Digit chain
Thu Dec 22 12:33:13 CET 2011    [seqfan] Digit chain
Fri Dec 16 01:40:01 CET 2011    [seqfan] More Xmas presents (with digits)
Tue Dec 6 22:07:28 CET 2011    [seqfan] Re: Alternate definition of A089233
Thu Jun 9 11:18:17 CEST 2011    [seqfan] a(n) rhymes with the sum of the a(n) terms
Mon Mar 14 16:21:23 CET 2011    [seqfan] A Pi-day self-chunking sequence
Thu Mar 10 18:55:33 CET 2011    [seqfan] A vertical stroke between all consecutive 1's
Thu Mar 3 18:33:10 CET 2011    [seqfan] Re: a(a(n)) is a triangular number
Wed Mar 2 17:16:33 CET 2011    [seqfan] a(a(n)) is a triangular number
Wed Feb 23 01:45:53 CET 2011    [seqfan] Re: Colorless integers
Fri Feb 18 09:31:27 CET 2011    [seqfan] Re: Sequence re partitions of n-gon needs more terms
Fri Dec 3 16:20:43 CET 2010    [seqfan] Absolute first differences of S are the odd terms of S itself
Sun Nov 28 21:04:59 CET 2010    [seqfan] Re: Q regarding A023172 (Numbers n such that n divides Fib(n).)
Fri Nov 26 10:41:18 CET 2010    [seqfan] a(n) is the a(n)th absolute first difference of S
Fri Nov 19 16:36:27 CET 2010    [seqfan] Fun with prime runs
Fri Nov 19 16:14:19 CET 2010    [seqfan] Fun with palindromic runs
Fri Oct 22 21:44:06 CEST 2010    [seqfan] Re: wanted: solution to a recurrence
Thu Oct 21 20:04:51 CEST 2010    [seqfan] Re: wanted: solution to a recurrence
Thu Oct 21 19:14:53 CEST 2010    [seqfan] Re: wanted: solution to a recurrence
Fri Oct 8 16:38:04 CEST 2010    [seqfan] Re: Observations on some odd Fibonacci numbers
Fri Oct 1 16:37:49 CEST 2010    [seqfan] Absolute first differences are a permutation of the primes
Tue Aug 31 10:11:50 CEST 2010    [seqfan] Inverse permutation is also the absolute value of the first diffs
Sat Aug 21 11:34:20 CEST 2010    [seqfan] Re: a(n-1+a(n))=a(n)+a(n-1)
Sat Aug 21 00:38:57 CEST 2010    [seqfan] a(n-1+a(n))=a(n)+a(n-1)
Wed Jun 30 07:00:01 CEST 2010    [seqfan] RE : Re: S and S complementary : cumulative sum is primeaccordingly
Tue Jun 29 20:03:03 CEST 2010    [seqfan] Re: S and S complementary : cumulative sum is prime accordingly
Tue Jun 29 16:47:47 CEST 2010    [seqfan] Re: S and S complementary : cumulative sum is prime accordingly
Tue Jun 29 15:32:22 CEST 2010    [seqfan] Re: S and S complementary : cumulative sum is prime accordingly
Wed Jun 16 11:56:50 CEST 2010    [seqfan] Methodically filling successive squares and primes with N
Mon Jun 14 16:27:52 CEST 2010    [seqfan] Successive weighing scales
Tue Jun 1 06:46:35 CEST 2010    [seqfan] Re: Natural numbers of the form (2^m + 3)/(2^k - 9)
Thu May 20 13:48:22 CEST 2010    [seqfan] Re: a(n) divides the sum of the first a(n) terms of S
Wed May 19 01:13:44 CEST 2010    [seqfan] RE : Re: a(n) divides the sum of the first a(n) terms of S
Tue May 18 18:44:25 CEST 2010    [seqfan] Re: a(n) divides the sum of the first a(n) terms of S
Tue May 18 18:21:43 CEST 2010    [seqfan] a(n) is tau[a(n)+a(n+1)]
Tue May 18 18:08:50 CEST 2010    [seqfan] Re: a(n) divides the sum of the first a(n) terms of S
Tue May 18 17:22:58 CEST 2010    [seqfan] Re: a(n) is tau[a(n)+a(n+1)]
Tue May 18 16:49:28 CEST 2010    [seqfan] Re: a(n) is tau[a(n)+a(n+1)]
Tue May 18 15:42:16 CEST 2010    [seqfan] a(n) is tau[a(n)+a(n+1)]
Mon May 17 19:42:59 CEST 2010    [seqfan] a(n) divides the sum of the first a(n) terms of S
Mon Apr 26 18:25:03 CEST 2010    [seqfan] Re: A (new) problem
Mon Apr 26 18:19:52 CEST 2010    [seqfan] Re: A (new) problem
Mon Apr 26 16:40:55 CEST 2010    [seqfan] Re: A (new) problem
Wed Feb 24 10:27:22 CET 2010    [seqfan] Re: Naturals reordered: a(n)th first digit is nota(n)thdigitof S
Tue Feb 23 22:15:16 CET 2010    [seqfan] Re: Naturals reordered: a(n)th first digit is not a(n)thdigitof S
Mon Feb 22 21:56:51 CET 2010    [seqfan] Re: A173279 and A173280
Wed Jan 6 02:59:32 CET 2010    [seqfan] Re: Sum of a(n) first digits of S is a(n+1)
Wed Jan 6 00:42:32 CET 2010    [seqfan] Re: Sum of a(n) first digits of S is a(n+1)
Wed Jan 6 00:10:41 CET 2010    [seqfan] Re: Sum of a(n) first digits of S is a(n+1)
Mon Jan 4 17:52:00 CET 2010    [seqfan] Sum of a(n) first digits of S is a(n+1)
Mon Dec 7 19:14:26 CET 2009    [seqfan] Re: Giuga numbers
Mon Dec 7 12:53:03 CET 2009    [seqfan] Re: Giuga numbers
Mon Dec 7 01:22:25 CET 2009    [seqfan] Alternate definition of A089233
Fri Nov 27 10:31:01 CET 2009    [seqfan] Re: Primes p = nk-1 dividing Fibonacci( k )
Thu Nov 26 18:44:20 CET 2009    [seqfan] Re: Primes p = nk-1 dividing Fibonacci( k )
Sun Nov 22 23:28:56 CET 2009    [seqfan] Re: RE : Re: Correct seq defined by: a(a(n)) is a square
Sun Nov 22 21:30:49 CET 2009    [seqfan] RE : Re: Correct seq defined by: a(a(n)) is a square
Sun Nov 22 17:48:12 CET 2009    [seqfan] Re: Correct seq defined by: a(a(n)) is a square
Sun Nov 22 17:37:37 CET 2009    [seqfan] Re: Correct seq defined by: a(a(n)) is a square
Sun Nov 22 16:56:59 CET 2009    [seqfan] Correct seq defined by: a(a(n)) is a square
Sun Nov 22 16:27:48 CET 2009    [seqfan] RE : a(a(n)) is a(n) squared
Sun Nov 22 16:15:40 CET 2009    [seqfan] a(a(n)) is a square
Sat Nov 21 15:13:21 CET 2009    [seqfan] Symmetrically: a(a(n))=a(n)+a(n+1)
Sat Nov 21 14:28:04 CET 2009    [seqfan] a(a(n))=a(n)+a(n-1)
Wed Nov 4 17:22:27 CET 2009    [seqfan] Re: 2.a(n) = a(a(n))
Wed Nov 4 16:31:51 CET 2009    [seqfan] Re: 2.a(n) = a(a(n))
Mon Nov 2 00:17:15 CET 2009    [seqfan] 2.a(n) = a(a(n))
Sun Nov 1 22:19:57 CET 2009    [seqfan] a(n) + a(a(n)) = prime
Sun Nov 1 21:30:10 CET 2009    [seqfan] Re: A129066: First term non-multiple of 5?
Sun Nov 1 13:25:41 CET 2009    [seqfan] a(n) is the digitsum of a(a(n))
Wed Oct 28 23:46:10 CET 2009    [seqfan] Undecidable sequences?
Fri Sep 4 05:31:05 CEST 2009    [seqfan] Re: a(n), a(n+1), [a(n)+a(n+1)] share no digits
Tue Sep 1 04:44:42 CEST 2009    [seqfan] Re: a(n), a(n+1), [a(n)+a(n+1)] share no digits
Tue Sep 1 01:30:13 CEST 2009    [seqfan] Re: a(n), a(n+1), [a(n)+a(n+1)] share no digits
Mon Aug 31 20:45:06 CEST 2009    [seqfan] Re: a(n), a(n+1), [a(n)+a(n+1)] share no digits
Mon Aug 31 19:32:40 CEST 2009    [seqfan] Re: a(n), a(n+1), [a(n)+a(n+1)] share no digits
Mon Aug 31 18:22:11 CEST 2009    [seqfan] a(n), a(n+1), [a(n)+a(n+1)] share no digits
Fri Jul 31 20:22:45 CEST 2009    [seqfan] RE : Re: a(n)th term is twice a(n)
Fri Jul 31 19:55:36 CEST 2009    [seqfan] Re: a(n)th term is twice a(n)
Wed Jul 29 10:41:40 CEST 2009    [seqfan] Re: a(n)th term is twice a(n)
Tue Jul 28 20:23:05 CEST 2009    [seqfan] Re: a(n)th term is twice a(n)
Tue Jul 28 19:05:00 CEST 2009    [seqfan] a(n)th term is twice a(n)
Fri Jun 26 23:47:55 CEST 2009    [seqfan] Re: Pairs Occurring Only Once Among # Of Divisors
Fri Jun 26 08:12:17 CEST 2009    [seqfan] Re: Pairs Occurring Only Once Among # Of Divisors
Thu Jun 25 22:42:31 CEST 2009    [seqfan] Re: Pairs Occurring Only Once Among # Of Divisors
Tue May 19 20:57:55 CEST 2009    [seqfan] Re: (kein Betreff)
Fri Apr 3 19:45:24 CEST 2009    [seqfan] Sharing no digit business (with building process)
Fri Mar 27 17:04:37 CET 2009    [seqfan] Re: Concatenate 5 digits = prime
Fri Mar 27 16:41:55 CET 2009    [seqfan] Re: Concatenate 5 digits = prime
Fri Mar 27 12:52:48 CET 2009    [seqfan] Re: Concatenate 5 digits = prime
Thu Mar 26 20:03:43 CET 2009    [seqfan] Re: Concatenate 5 digits = prime
Thu Mar 26 19:52:48 CET 2009    [seqfan] Concatenate 5 digits = prime
Wed Jan 28 14:38:56 CET 2009    [seqfan] Re: The last digit "d" of a(n) is present in a(n+1+d)
Wed Jan 28 09:27:58 CET 2009    [seqfan] Re: The last digit "d" of a(n) is present in a(n+1+d)
Mon Jan 26 18:57:51 CET 2009    [seqfan] The last digit "d" of a(n) is present in a(n+1+d)

Index of A-numbers in seqfan: by ascending order    by month    by frequency    by keyword