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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.

A377859 Expansion of e.g.f. (1/x) * Series_Reversion( x * (1 - x) * exp(x) ).

Table of values

n a(n)
0 1
1 0
2 1
3 2
4 21
5 144
6 1765
7 21552
8 340137
9 5845760
10 116495721
11 2550320640
12 62023290109
13 1642735460352
14 47321500546125
15 1469008742856704
16 48962556079079505
17 1742660440701861888
18 65993849612007279697
19 2648999558505185280000
20 112360563741545020804581

List of values

[1, 0, 1, 2, 21, 144, 1765, 21552, 340137, 5845760, 116495721, 2550320640, 62023290109, 1642735460352, 47321500546125, 1469008742856704, 48962556079079505, 1742660440701861888, 65993849612007279697, 2648999558505185280000, 112360563741545020804581]

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

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