Number of subsequences of [ 1,...,2n ] in which each odd number has an even neighbor.
1, 3, 11, 39, 139, 495, 1763, 6279, 22363, 79647, 283667, 1010295, 3598219
3 seqfan posts
Tue Dec 2 03:55:20 CET 2008 [seqfan] Re: %F A100638 (?!)
Tue Dec 2 03:55:20 CET 2008 [seqfan] Re: %F A100638 (?!)
Mon Dec 1 18:12:14 CET 2008 [seqfan] Re: %F A100638 (?!)
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
.