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.

A012780 Expansion of e.g.f. arcsin(tan(x)) (odd powers only).

Table of values

n a(n)
0 1
1 3
2 45
3 1743
4 133305
5 17089083
6 3302755365
7 896199578823
8 324729845802225
9 151401766241310963
10 88276508686397289885
11 62925559543228826845503
12 53835082550295989275314345
13 54438337988081689498005862443
14 64228314189095958231926869651605

List of values

[1, 3, 45, 1743, 133305, 17089083, 3302755365, 896199578823, 324729845802225, 151401766241310963, 88276508686397289885, 62925559543228826845503, 53835082550295989275314345, 54438337988081689498005862443, 64228314189095958231926869651605]

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

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