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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.

A068251 1/24 the number of colorings of a 4 X 4 octagonal array with n colors.

Table of values

n a(n)
4 7
5 38960
6 11043135
7 715016960
8 19498281250
9 301435761312
10 3120392830170
11 23965758136320
12 146127409139745
13 741378459250000
14 3237913809747617
15 12485709312410880
16 43342515673364180
17 137520873034108480
18 403684061693062500
19 1107133265664540672
20 2859892150083272715

List of values

[7, 38960, 11043135, 715016960, 19498281250, 301435761312, 3120392830170, 23965758136320, 146127409139745, 741378459250000, 3237913809747617, 12485709312410880, 43342515673364180, 137520873034108480, 403684061693062500, 1107133265664540672, 2859892150083272715]

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

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