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.

A302543 Expansion of e.g.f. arctanh(x)/cos(x) (odd powers only).

Table of values

n a(n)
0 1
1 5
2 69
3 2001
4 104073
5 8723549
6 1088372557
7 190057979177
8 44285819490065
9 13267464006201781
10 4964113699657822805
11 2266816666007859759489
12 1239999748307938170531225
13 800189083150907165762837517
14 601369618369661775955962338653
15 520607107122686183781743903500505

List of values

[1, 5, 69, 2001, 104073, 8723549, 1088372557, 190057979177, 44285819490065, 13267464006201781, 4964113699657822805, 2266816666007859759489, 1239999748307938170531225, 800189083150907165762837517, 601369618369661775955962338653, 520607107122686183781743903500505]

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

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