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.

A012393 E.g.f. arctanh(tan(x)*tan(x)) (even powers only).

Table of values

n a(n)
0 0
1 2
2 16
3 512
4 34816
5 4063232
6 724566016
7 183240753152
8 62382319599616
9 27507470234550272
10 15250953398036463616
11 10384044045105304174592
12 8517992937742473694806016
13 8285310016381680852100186112

List of values

[0, 2, 16, 512, 34816, 4063232, 724566016, 183240753152, 62382319599616, 27507470234550272, 15250953398036463616, 10384044045105304174592, 8517992937742473694806016, 8285310016381680852100186112]

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

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