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.

A009121 Expansion of e.g.f. cosh(exp(x)*x).

Table of values

n a(n)
0 1
1 0
2 1
3 6
4 25
5 100
6 481
7 2954
8 20721
9 151848
10 1146721
11 9111982
12 77652169
13 710421452
14 6891125697
15 69961213170
16 738718169569
17 8108554524112
18 92647353941569
19 1101958783026134
20 13616813607795321
21 174287243264606388
22 2304515271134124577
23 31424734896799742170

List of values

[1, 0, 1, 6, 25, 100, 481, 2954, 20721, 151848, 1146721, 9111982, 77652169, 710421452, 6891125697, 69961213170, 738718169569, 8108554524112, 92647353941569, 1101958783026134, 13616813607795321, 174287243264606388, 2304515271134124577, 31424734896799742170]

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

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