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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.

A357703 Expansion of e.g.f. cosh( sqrt(3) * log(1-x) ).

Table of values

n a(n)
0 1
1 0
2 3
3 9
4 42
5 240
6 1614
7 12474
8 108900
9 1059696
10 11371932
11 133410420
12 1698541416
13 23324023008
14 343606235544
15 5405580540360
16 90445832210448
17 1603781918563968
18 30042007763367600
19 592788643008571152
20 12289695299276133024
21 267079782474700715520

List of values

[1, 0, 3, 9, 42, 240, 1614, 12474, 108900, 1059696, 11371932, 133410420, 1698541416, 23324023008, 343606235544, 5405580540360, 90445832210448, 1603781918563968, 30042007763367600, 592788643008571152, 12289695299276133024, 267079782474700715520]

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

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