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.

A380514 Expansion of e.g.f. exp(x*G(x)^2) where G(x) = 1 + x*G(x)^4 is the g.f. of A002293.

Table of values

n a(n)
0 1
1 1
2 5
3 67
4 1537
5 50021
6 2107021
7 108885295
8 6665443457
9 471522589417
10 37843890892021
11 3397250515809371
12 337267132243022785
13 36687625652474612557
14 4339368321317331858557
15 554467482301151809302151
16 76112537023512618262963201
17 11170667360636927554290623825
18 1745500813880455301486766050917

List of values

[1, 1, 5, 67, 1537, 50021, 2107021, 108885295, 6665443457, 471522589417, 37843890892021, 3397250515809371, 337267132243022785, 36687625652474612557, 4339368321317331858557, 554467482301151809302151, 76112537023512618262963201, 11170667360636927554290623825, 1745500813880455301486766050917]