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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.

A009798 E.g.f. tanh(sin(x)*cos(x)) (odd powers only).

Table of values

n a(n)
0 1
1 -6
2 112
3 -5488
4 451840
5 -57057792
6 10262228992
7 -2484525168640
8 779280513040384
9 -307370299649556480
10 148889329569589362688
11 -86890528715348714192896
12 60129120979379216762011648

List of values

[1, -6, 112, -5488, 451840, -57057792, 10262228992, -2484525168640, 779280513040384, -307370299649556480, 148889329569589362688, -86890528715348714192896, 60129120979379216762011648]

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

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