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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.

A230367 Number of colorings of the edges of the complete graph on n unlabeled vertices using at most three interchangeable colors under the symmetries of the full edge permutation group.

Table of values

n a(n)
2 1
3 3
4 15
5 142
6 4300
7 384199
8 98654374
9 70130880569
10 136638863494089
11 730439999032117301
12 10764688922047900738650
13 439762062635963206090747374
14 50066701349010686289507943943535
15 15962815411172611585301863116082363362
16 14314975828662356561039590680011420432741442
17 36247244119877673111912410070361564495415461430358

List of values

[1, 3, 15, 142, 4300, 384199, 98654374, 70130880569, 136638863494089, 730439999032117301, 10764688922047900738650, 439762062635963206090747374, 50066701349010686289507943943535, 15962815411172611585301863116082363362, 14314975828662356561039590680011420432741442, 36247244119877673111912410070361564495415461430358]

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

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