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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.

A353894 Expansion of e.g.f. exp( (x * (exp(x) - 1))^2 / 4 ).

Table of values

n a(n)
0 1
1 0
2 0
3 0
4 6
5 30
6 105
7 315
8 2128
9 24948
10 251415
11 2093025
12 16437036
13 148728294
14 1693067467
15 21459867975
16 270217289280
17 3338860150488
18 42428729660751
19 581966068060485
20 8654787480759700
21 135253842794286930
22 2163416823356628147
23 35313421249845594075

List of values

[1, 0, 0, 0, 6, 30, 105, 315, 2128, 24948, 251415, 2093025, 16437036, 148728294, 1693067467, 21459867975, 270217289280, 3338860150488, 42428729660751, 581966068060485, 8654787480759700, 135253842794286930, 2163416823356628147, 35313421249845594075]

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

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