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.

A219503 Expansion of e.g.f. Sum_{n>=0} (n+1)^(n-1) * sinh(x)^n / n!.

Table of values

n a(n)
0 1
1 1
2 3
3 17
4 137
5 1457
6 19355
7 308961
8 5766353
9 123285153
10 2972114803
11 79782059249
12 2360417058521
13 76319622510289
14 2677629295171979
15 101318751122847297
16 4113158120834726049
17 178328823993199602241
18 8223999403291995520995
19 401989145900847087408849

List of values

[1, 1, 3, 17, 137, 1457, 19355, 308961, 5766353, 123285153, 2972114803, 79782059249, 2360417058521, 76319622510289, 2677629295171979, 101318751122847297, 4113158120834726049, 178328823993199602241, 8223999403291995520995, 401989145900847087408849]