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.

A012727 exp(arctanh(x)*arctan(x))=1+2/2!*x^2+12/4!*x^4+328/6!*x^6+13328/8!*x^8...

Table of values

n a(n)
0 1
1 2
2 12
3 328
4 13328
5 1160352
6 123701952
7 22207125120
8 4532782825728
9 1380071532433920
10 459909185638812672
11 212375023941305272320
12 104929881035116227072000
13 68350141067274779587092480

List of values

[1, 2, 12, 328, 13328, 1160352, 123701952, 22207125120, 4532782825728, 1380071532433920, 459909185638812672, 212375023941305272320, 104929881035116227072000, 68350141067274779587092480]

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

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