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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.

A217338 Number of inequivalent ways to color a 4 X 4 checkerboard using at most n colors allowing rotations and reflections.

Table of values

n a(n)
0 0
1 1
2 8548
3 5398083
4 537157696
5 19076074375
6 352654485156
7 4154189102413
8 35184646816768
9 231628411446741
10 1250002537502500
11 5743722797690911
12 23110548002468928
13 83177110918426603
14 272244240093265636
15 821051189587805625
16 2305843285702230016
17 6082649491072763593

List of values

[0, 1, 8548, 5398083, 537157696, 19076074375, 352654485156, 4154189102413, 35184646816768, 231628411446741, 1250002537502500, 5743722797690911, 23110548002468928, 83177110918426603, 272244240093265636, 821051189587805625, 2305843285702230016, 6082649491072763593]

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

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