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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.

A381519 Expansion of e.g.f. (1/x) * Series_Reversion( x/(1 + sin(x))^2 ).

Table of values

n a(n)
0 1
1 2
2 10
3 82
4 936
5 13642
6 240656
7 4952218
8 115608704
9 2992207250
10 84070140672
11 2507383885730
12 77117178496000
13 2329071118971482
14 61202811821836288
15 690380688651775978
16 -88097620429234470912
17 -11900508444760552311518
18 -1112180862634722333884416

List of values

[1, 2, 10, 82, 936, 13642, 240656, 4952218, 115608704, 2992207250, 84070140672, 2507383885730, 77117178496000, 2329071118971482, 61202811821836288, 690380688651775978, -88097620429234470912, -11900508444760552311518, -1112180862634722333884416]

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

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