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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.

A320566 Expansion of e.g.f. exp(x) * Product_{k>=1} 1/(1 - x^k/k!).

Table of values

n a(n)
0 1
1 2
2 6
3 23
4 110
5 617
6 4035
7 29927
8 249926
9 2316317
10 23674841
11 264329177
12 3207278255
13 42011308653
14 591460307157
15 8905905152798
16 142897741683846
17 2433947385964373
18 43873382718719949
19 834402502632550589
20 16699964488044322205
21 350869837371828862607
22 7721899536993122262447

List of values

[1, 2, 6, 23, 110, 617, 4035, 29927, 249926, 2316317, 23674841, 264329177, 3207278255, 42011308653, 591460307157, 8905905152798, 142897741683846, 2433947385964373, 43873382718719949, 834402502632550589, 16699964488044322205, 350869837371828862607, 7721899536993122262447]

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

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