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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.

A122082 Number of unlabeled bicolored graphs on 2n nodes which are invariant when the two color classes are interchanged.

Table of values

n a(n)
0 1
1 2
2 5
3 16
4 67
5 404
6 3904
7 64840
8 1930842
9 104698904
10 10401039400
11 1900637187280
12 641429385018832
13 401454435464761376
14 467919402404052870944
15 1019758699013228238271040
16 4171161230867751509749228304

List of values

[1, 2, 5, 16, 67, 404, 3904, 64840, 1930842, 104698904, 10401039400, 1900637187280, 641429385018832, 401454435464761376, 467919402404052870944, 1019758699013228238271040, 4171161230867751509749228304]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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