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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.

A330539 Expansion of e.g.f. Product_{k>=1} (1 + arcsin(x^k)).

Table of values

n a(n)
0 1
1 1
2 2
3 13
4 48
5 389
6 3120
7 27483
8 258384
9 3209481
10 40895280
11 532286415
12 8095233960
13 125622532125
14 2196944928360
15 40755258858195
16 773235510112800
17 15597078326535825
18 345588497493916320
19 7674105262451228055
20 183908428603335286200

List of values

[1, 1, 2, 13, 48, 389, 3120, 27483, 258384, 3209481, 40895280, 532286415, 8095233960, 125622532125, 2196944928360, 40755258858195, 773235510112800, 15597078326535825, 345588497493916320, 7674105262451228055, 183908428603335286200]

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

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