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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.

A295237 Expansion of e.g.f. csc(x)*(1 - sqrt(1 - 4*sin(x)))/2.

Table of values

n a(n)
0 1
1 1
2 4
3 29
4 320
5 4741
6 88384
7 1988489
8 52448000
9 1587545161
10 54252120064
11 2066298252149
12 86799115489280
13 3986897970744781
14 198795278022098944
15 10694247962623751009
16 617392620634705756160
17 38074395493710549747601
18 2498063366053169206657024
19 173745719989547715852773069

List of values

[1, 1, 4, 29, 320, 4741, 88384, 1988489, 52448000, 1587545161, 54252120064, 2066298252149, 86799115489280, 3986897970744781, 198795278022098944, 10694247962623751009, 617392620634705756160, 38074395493710549747601, 2498063366053169206657024, 173745719989547715852773069]

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

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