cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A254314 Hankel transform of a(n) is A006720(n). Hankel transform of a(n+1) is A006720(n+2).

Table of values

n a(n)
0 1
1 1
2 2
3 5
4 14
5 43
6 143
7 507
8 1887
9 7279
10 28828
11 116455
12 477709
13 1983779
14 8321474
15 35203777
16 150014157
17 643302743
18 2773997104
19 12020733635
20 52319374842
21 228616865437
22 1002544803949
23 4410700121313
24 19462407890220
25 86111960348939
26 381956399941011

List of values

[1, 1, 2, 5, 14, 43, 143, 507, 1887, 7279, 28828, 116455, 477709, 1983779, 8321474, 35203777, 150014157, 643302743, 2773997104, 12020733635, 52319374842, 228616865437, 1002544803949, 4410700121313, 19462407890220, 86111960348939, 381956399941011]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.