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.

A193438 Expansion of e.g.f. exp( Sum_{n>=0} x^(4*n+1)/(4*n+1) ).

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 1
5 25
6 145
7 505
8 1345
9 43345
10 481825
11 3027025
12 13679425
13 528618025
14 8796735025
15 81517983625
16 529655946625
17 23619691278625
18 526089195906625
19 6512769913326625
20 55783484692170625
21 2802281186570685625
22 78369733286598300625
23 1221751619270220585625

List of values

[1, 1, 1, 1, 1, 25, 145, 505, 1345, 43345, 481825, 3027025, 13679425, 528618025, 8796735025, 81517983625, 529655946625, 23619691278625, 526089195906625, 6512769913326625, 55783484692170625, 2802281186570685625, 78369733286598300625, 1221751619270220585625]