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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.

A371021 Expansion of e.g.f. (1/x) * Series_Reversion( x/(1 + x^3/6*exp(x)) ).

Table of values

n a(n)
0 1
1 0
2 0
3 1
4 4
5 10
6 80
7 1015
8 9016
9 80724
10 1092120
11 16872405
12 246966940
13 3932454526
14 73869476044
15 1485097614455
16 30688224287280
17 682450482838440
18 16508839426673136
19 420562937260614249
20 11193327347979937140
21 315276822746559147250
22 9383980947735649740100

List of values

[1, 0, 0, 1, 4, 10, 80, 1015, 9016, 80724, 1092120, 16872405, 246966940, 3932454526, 73869476044, 1485097614455, 30688224287280, 682450482838440, 16508839426673136, 420562937260614249, 11193327347979937140, 315276822746559147250, 9383980947735649740100]

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

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