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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.

A385346 Expansion of e.g.f. 1/(1 - 2 * arcsin(x)).

Table of values

n a(n)
0 1
1 2
2 8
3 50
4 416
5 4338
6 54272
7 792402
8 13221888
9 248206818
10 5177131008
11 118784695218
12 2973171646464
13 80619877999698
14 2354230063005696
15 73657841729314002
16 2458203242895507456
17 87165684035402711490
18 3272629788196529504256
19 129696816160868956695090

List of values

[1, 2, 8, 50, 416, 4338, 54272, 792402, 13221888, 248206818, 5177131008, 118784695218, 2973171646464, 80619877999698, 2354230063005696, 73657841729314002, 2458203242895507456, 87165684035402711490, 3272629788196529504256, 129696816160868956695090]

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

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