Number of permutations satisfying i-2<=p(i)<=i+5, i=1..n.
1, 2, 6, 18, 54, 162, 454, 1267, 3613, 10344, 29572, 84436, 240868, 686884
4 seqfan posts
Wed Jun 30 13:07:48 CEST 2010 [seqfan] Re: b-files for apparently matching sequences?
Wed Jun 30 10:34:44 CEST 2010 [seqfan] Re: b-files for apparently matching sequences?
Tue Jun 29 18:08:01 CEST 2010 [seqfan] Re: b-files for apparently matching sequences?
Tue Jun 29 17:22:49 CEST 2010 [seqfan] b-files for apparently matching sequences?
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
Links to OEIS content are included according to
The OEIS End-User License Agreement
.