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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.

A377533 Expansion of e.g.f. 1/(1 - x * exp(x^2))^2.

Table of values

n a(n)
0 1
1 2
2 6
3 36
4 264
5 2280
6 23760
7 283920
8 3830400
9 57728160
10 959212800
11 17424348480
12 343508014080
13 7302340805760
14 166504724305920
15 4053311579116800
16 104916366780825600
17 2877212787562713600
18 83332056329006284800
19 2541707625791324390400
20 81432631127484628992000

List of values

[1, 2, 6, 36, 264, 2280, 23760, 283920, 3830400, 57728160, 959212800, 17424348480, 343508014080, 7302340805760, 166504724305920, 4053311579116800, 104916366780825600, 2877212787562713600, 83332056329006284800, 2541707625791324390400, 81432631127484628992000]

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

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