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.

A009196 Expansion of e.g.f. exp(log(1+x)/cos(x)).

Table of values

n a(n)
0 1
1 1
2 0
3 3
4 6
5 15
6 195
7 126
8 6860
9 10581
10 275955
11 1581734
12 11684442
13 223836379
14 423165561
15 32439219242
16 10301267912
17 4976257880345
18 4959730228167
19 803695677341350
20 3521551886934550
21 131556027669677615
22 1743242423131143869
23 19663074849601180770

List of values

[1, 1, 0, 3, 6, 15, 195, 126, 6860, 10581, 275955, 1581734, 11684442, 223836379, 423165561, 32439219242, 10301267912, 4976257880345, 4959730228167, 803695677341350, 3521551886934550, 131556027669677615, 1743242423131143869, 19663074849601180770]

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

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