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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.

A084098 Expansion of e.g.f. exp(x)*tan(2*x)/2.

Table of values

n a(n)
0 0
1 1
2 2
3 11
4 36
5 341
6 1702
7 23071
8 154056
9 2691241
10 22470602
11 479886131
12 4808343276
13 121361260541
14 1418683841902
15 41316096677191
16 551971861815696
17 18218322689532241
18 273815850521907602
19 10100775754144668251

List of values

[0, 1, 2, 11, 36, 341, 1702, 23071, 154056, 2691241, 22470602, 479886131, 4808343276, 121361260541, 1418683841902, 41316096677191, 551971861815696, 18218322689532241, 273815850521907602, 10100775754144668251]

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

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