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.

A233199 Number of nX5 0..7 arrays with no element x(i,j) adjacent to itself or value 7-x(i,j) horizontally, antidiagonally or vertically, top left element zero, and 1 appearing before 2 3 4 5 and 6, 2 appearing before 3 4 and 5, and 3 appearing before 4 in row major order (unlabelled 8-colorings with no clashing color pairs).

Table of values

n a(n)
1 48
2 8256
3 2779136
4 981532672
5 352524959744
6 127365174788096
7 46111939268444160
8 16706602064729341952
9 6054323596680792899584
10 2194196637563524913037312
11 795235812066308877870694400

List of values

[48, 8256, 2779136, 981532672, 352524959744, 127365174788096, 46111939268444160, 16706602064729341952, 6054323596680792899584, 2194196637563524913037312, 795235812066308877870694400]

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

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