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.

A012131 cosh(arcsin(tanh(x)))=1+1/2!*x^2-3/4!*x^4+21/6!*x^6-263/8!*x^8...

Table of values

n a(n)
0 1
1 1
2 -3
3 21
4 -263
5 4841
6 -99723
7 -199939
8 501445617
9 -101818966319
10 19731909099757
11 -4192563651606299
12 1009030667701246697
13 -277080625752723191879
14 86724157841631252590437
15 -30813037783471577493355059
16 12363651257099764677344554977

List of values

[1, 1, -3, 21, -263, 4841, -99723, -199939, 501445617, -101818966319, 19731909099757, -4192563651606299, 1009030667701246697, -277080625752723191879, 86724157841631252590437, -30813037783471577493355059, 12363651257099764677344554977]