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.

A115151 Fourth diagonal (M=4) sequence of triangle A113647, called Y(2,1).

Table of values

n a(n)
0 1
1 31
2 289
3 2271
4 16929
5 123871
6 901153
7 6553567
8 47759393
9 349143007
10 2561474593
11 18860670943
12 139371085857
13 1033405464543
14 7687240679457
15 57356977176543
16 429173772386337
17 3219806849335263
18 24215844242325537

List of values

[1, 31, 289, 2271, 16929, 123871, 901153, 6553567, 47759393, 349143007, 2561474593, 18860670943, 139371085857, 1033405464543, 7687240679457, 57356977176543, 429173772386337, 3219806849335263, 24215844242325537]