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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.

A357663 Expansion of e.g.f. cosh( (exp(4*x) - 1)/2 ).

Table of values

n a(n)
0 1
1 0
2 4
3 48
4 464
5 4480
6 48448
7 621824
8 9320704
9 154890240
10 2746131456
11 51237908480
12 1007228375040
13 20965557829632
14 463091379159040
15 10826828061147136
16 266438312153120768
17 6861616219559034880
18 184128217520198123520
19 5135753969867535941632

List of values

[1, 0, 4, 48, 464, 4480, 48448, 621824, 9320704, 154890240, 2746131456, 51237908480, 1007228375040, 20965557829632, 463091379159040, 10826828061147136, 266438312153120768, 6861616219559034880, 184128217520198123520, 5135753969867535941632]

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

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