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.

A317022 Expansion of e.g.f. sec(exp(x) - 1) + tan(exp(x) - 1).

Table of values

n a(n)
0 1
1 1
2 2
3 6
4 25
5 132
6 838
7 6209
8 52592
9 501238
10 5308295
11 61839954
12 785915626
13 10820482467
14 160436371306
15 2548722840218
16 43188812459297
17 777586865332600
18 14823480294719570
19 298285781617278681
20 6318170247815155180
21 140520406400556170514
22 3274091838364580459623

List of values

[1, 1, 2, 6, 25, 132, 838, 6209, 52592, 501238, 5308295, 61839954, 785915626, 10820482467, 160436371306, 2548722840218, 43188812459297, 777586865332600, 14823480294719570, 298285781617278681, 6318170247815155180, 140520406400556170514, 3274091838364580459623]

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

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