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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.

A296841 Expansion of e.g.f. sin(x*tan(x/2)) (even powers only).

Table of values

n a(n)
0 0
1 1
2 1
3 -12
4 -193
5 -2365
6 -18552
7 500689
8 48649969
9 2981261772
10 169237306055
11 9187565146331
12 427287357700176
13 6011297159973313
14 -2887128048794477663
15 -711942625068679870620
16 -132369975517302093882097
17 -22968753773651295426439021

List of values

[0, 1, 1, -12, -193, -2365, -18552, 500689, 48649969, 2981261772, 169237306055, 9187565146331, 427287357700176, 6011297159973313, -2887128048794477663, -711942625068679870620, -132369975517302093882097, -22968753773651295426439021]

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

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