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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.

A296835 Expansion of e.g.f. exp(x*tan(x/2)) (even powers only).

Table of values

n a(n)
0 1
1 1
2 4
3 33
4 451
5 9110
6 253401
7 9246881
8 427272364
9 24332740569
10 1671761966755
11 136185663849422
12 12966840876896193
13 1425738305622057713
14 179172604156015950676
15 25507107918052543195905
16 4081610970381242583997171
17 729135575105289450378655526

List of values

[1, 1, 4, 33, 451, 9110, 253401, 9246881, 427272364, 24332740569, 1671761966755, 136185663849422, 12966840876896193, 1425738305622057713, 179172604156015950676, 25507107918052543195905, 4081610970381242583997171, 729135575105289450378655526]

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

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