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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.

A381518 Expansion of e.g.f. ( (1/x) * Series_Reversion( x/(1 + sin(x))^2 ) )^(1/2).

Table of values

n a(n)
0 1
1 1
2 4
3 29
4 304
5 4141
6 68832
7 1337881
8 29432576
9 712263961
10 18403873280
11 487814777141
12 12296236382208
13 230142147098501
14 -2906327530115072
15 -800177574047914831
16 -75835523291585773568
17 -6054072134316123116495
18 -459749417224473755910144
19 -34556942957229166465685555

List of values

[1, 1, 4, 29, 304, 4141, 68832, 1337881, 29432576, 712263961, 18403873280, 487814777141, 12296236382208, 230142147098501, -2906327530115072, -800177574047914831, -75835523291585773568, -6054072134316123116495, -459749417224473755910144, -34556942957229166465685555]

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

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