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.

A009764 Expansion of e.g.f. tan(x)^2 (even powers only).

Table of values

n a(n)
0 0
1 2
2 16
3 272
4 7936
5 353792
6 22368256
7 1903757312
8 209865342976
9 29088885112832
10 4951498053124096
11 1015423886506852352
12 246921480190207983616
13 70251601603943959887872
14 23119184187809597841473536
15 8713962757125169296170811392
16 3729407703720529571097509625856

List of values

[0, 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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