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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.

A296679 Expansion of e.g.f. arcsinh(arctanh(x)) (odd powers only).

Table of values

n a(n)
0 1
1 1
2 13
3 341
4 18649
5 1599849
6 205524837
7 36391450941
8 8546308276401
9 2564025898856913
10 957697868873929149
11 435619128300038521893
12 237104370189582892175241
13 152148421079949399306125625
14 113672892845152570858515803925
15 97820056722556900357454981990925

List of values

[1, 1, 13, 341, 18649, 1599849, 205524837, 36391450941, 8546308276401, 2564025898856913, 957697868873929149, 435619128300038521893, 237104370189582892175241, 152148421079949399306125625, 113672892845152570858515803925, 97820056722556900357454981990925]

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

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