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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.

A291483 Expansion of e.g.f. arcsinh(x)*exp(x).

Table of values

n a(n)
0 0
1 1
2 2
3 2
4 0
5 4
6 40
7 -64
8 -1344
9 3984
10 85408
11 -356896
12 -8462080
13 45908160
14 1209040768
15 -8080805888
16 -235449260032
17 1871655631104
18 59955521585664
19 -552758145525248
20 -19339870285225984
21 202927333558572032
22 7707208199780517888
23 -90698934927786770432
24 -3718489569130941169664
25 48507735629457304555520

List of values

[0, 1, 2, 2, 0, 4, 40, -64, -1344, 3984, 85408, -356896, -8462080, 45908160, 1209040768, -8080805888, -235449260032, 1871655631104, 59955521585664, -552758145525248, -19339870285225984, 202927333558572032, 7707208199780517888, -90698934927786770432, -3718489569130941169664, 48507735629457304555520]

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

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