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.

A037290 Number of self-converse rings (isomorphic to inverse) with n elements.

Table of values

n a(n)
1 1
2 2
3 2
4 9
5 2
6 4
7 2
8 40
9 9
10 4
11 2
12 18
13 2
14 4
15 4
16 242
17 2
18 18
19 2
20 18
21 4
22 4
23 2
24 80
25 9
26 4
27 47
28 18
29 2
30 8
31 2

List of values

[1, 2, 2, 9, 2, 4, 2, 40, 9, 4, 2, 18, 2, 4, 4, 242, 2, 18, 2, 18, 4, 4, 2, 80, 9, 4, 47, 18, 2, 8, 2]