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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.

A336638 Sum_{n>=0} a(n) * x^n / (n!)^2 = 1 / BesselJ(0,2*sqrt(x))^3.

Table of values

n a(n)
0 1
1 3
2 21
3 255
4 4725
5 123903
6 4368729
7 199467243
8 11455187445
9 808475761695
10 68805857523321
11 6950458374996843
12 822292004658568761
13 112639503374757412875
14 17688916392275574761805
15 3157133540377493872350855
16 635546443798928578953138165

List of values

[1, 3, 21, 255, 4725, 123903, 4368729, 199467243, 11455187445, 808475761695, 68805857523321, 6950458374996843, 822292004658568761, 112639503374757412875, 17688916392275574761805, 3157133540377493872350855, 635546443798928578953138165]

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

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