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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.

A009379 Expansion of log(1+tan(x)*x).

Table of values

n a(n)
0 0
1 2
2 -4
3 96
4 -2080
5 125440
6 -8629248
7 996007936
8 -140162633728
9 27058965184512
10 -6350990843576320
11 1866805063173799936
12 -653569786506324738048
13 273136898848234632380416
14 -133034893921204302732328960

List of values

[0, 2, -4, 96, -2080, 125440, -8629248, 996007936, -140162633728, 27058965184512, -6350990843576320, 1866805063173799936, -653569786506324738048, 273136898848234632380416, -133034893921204302732328960]

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

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