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.

A365972 Expansion of e.g.f. exp( Sum_{k>=0} x^(5*k+2) / (5*k+2) ).

Table of values

n a(n)
0 1
1 0
2 1
3 0
4 3
5 0
6 15
7 720
8 105
9 25920
10 945
11 712800
12 39927195
13 18532800
14 4522138335
15 486486000
16 324696683025
17 20936022307200
18 19281559579425
19 5026330152043200
20 1045172736969075
21 704618287875216000
22 51145202778981886575
23 76432873129004106000

List of values

[1, 0, 1, 0, 3, 0, 15, 720, 105, 25920, 945, 712800, 39927195, 18532800, 4522138335, 486486000, 324696683025, 20936022307200, 19281559579425, 5026330152043200, 1045172736969075, 704618287875216000, 51145202778981886575, 76432873129004106000]