cp's OEIS Frontend

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.

A357666 Expansion of e.g.f. sinh( (exp(4*x) - 1)/2 )/2.

Table of values

n a(n)
0 0
1 1
2 4
3 20
4 160
5 1872
6 25024
7 348224
8 5055488
9 78571776
10 1332573184
11 24695206912
12 493816963072
13 10492449771520
14 234399640633344
15 5480635606908928
16 134015043318054912
17 3427700843478056960
18 91642829715498336256
19 2556218693498006929408

List of values

[0, 1, 4, 20, 160, 1872, 25024, 348224, 5055488, 78571776, 1332573184, 24695206912, 493816963072, 10492449771520, 234399640633344, 5480635606908928, 134015043318054912, 3427700843478056960, 91642829715498336256, 2556218693498006929408]

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

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