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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.

A000182 Tangent (or "Zag") numbers: e.g.f. tan(x), also (up to signs) e.g.f. tanh(x).

Table of values

n a(n)
1 1
2 2
3 16
4 272
5 7936
6 353792
7 22368256
8 1903757312
9 209865342976
10 29088885112832
11 4951498053124096
12 1015423886506852352
13 246921480190207983616
14 70251601603943959887872
15 23119184187809597841473536
16 8713962757125169296170811392
17 3729407703720529571097509625856

List of values

[1, 2, 16, 272, 7936, 353792, 22368256, 1903757312, 209865342976, 29088885112832, 4951498053124096, 1015423886506852352, 246921480190207983616, 70251601603943959887872, 23119184187809597841473536, 8713962757125169296170811392, 3729407703720529571097509625856]

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

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