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.

A233198 Number of n X 4 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 11
2 528
3 62720
4 7802880
5 981532672
6 123833679872
7 15635845218304
8 1974688792182784
9 249403601212932096
10 31500304517060100096
11 3978590250109478371328
12 502509651344957204594688

List of values

[11, 528, 62720, 7802880, 981532672, 123833679872, 15635845218304, 1974688792182784, 249403601212932096, 31500304517060100096, 3978590250109478371328, 502509651344957204594688]

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

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