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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.

A156036 Numerators in expansion of log(z^2/(cosh(z)-cos(z))) for exponents that are multiples of 4.

Table of values

n a(n)
0 0
1 -1
2 1
3 -691
4 3617
5 -174611
6 236364091
7 -3392780147
8 7709321041217
9 -26315271553053477373
10 261082718496449122051
11 -2530297234481911294093
12 5609403368997817686249127547
13 -61628132164268458257532691681
14 354198989901889536240773677094747
15 -1215233140483755572040304994079820246041491

List of values

[0, -1, 1, -691, 3617, -174611, 236364091, -3392780147, 7709321041217, -26315271553053477373, 261082718496449122051, -2530297234481911294093, 5609403368997817686249127547, -61628132164268458257532691681, 354198989901889536240773677094747, -1215233140483755572040304994079820246041491]

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

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