[seqfan] A flagpole sequence of itself (numbers)

Eric Angelini Eric.Angelini at kntv.be
Mon Aug 13 15:05:48 CEST 2012


(follow-up post)

The same idea as in my previous post -- but with integers
(the "digit column b" spells the digits of the sequence):

digit column:  a b c

                 1
                 2
                 3
                 4
                 5
                 6
                 7
                 8
                 9
                 10
               2 0
               1 2
               3 0
                 1 1
                 2 1
               1 3
               4 0
                 1 4
                 1 5
                 2 2
                 1 6
                 1 7
               2 3
               2 4
               5 0
                 1 8
               3 4
                 1 9
               2 5
                 2 6
                 2 7
                 .
                 .
                 .

The sequence 1,2,3,4,5,6,7,8,9,10,20,12,30,11,21,13,40,14,15,
             22,16,17,23,24,50,18,34,19,25,26,27,... 
is for sure a permutation of the Naturals.

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If this "flagpole" concept is worth entering the OEIS,
one could add a lot of such sequences: 
Fla*Prime would start: 2,3,5,7,11,15,17,23,19,37,29,31,41,59,37,47,...
Fla*Fibo  would start: 0,1,1,2,3,5,8,13,34,233,144,21,46368,121393,...
Fla*Even  would start: 2,4,6,8,10,20,12,30,14,22,32,40,16,24,26,28,...
----------

Best,
É.




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