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.

A233167 Number of n X 7 0..7 arrays with no element x(i,j) adjacent to itself or value 7-x(i,j) horizontally, diagonally, 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 (unlabeled 8-colorings with no clashing color pairs).

Table of values

n a(n)
1 1248
2 32768
3 4325376
4 587202560
5 83751862272
6 12919261626368
7 2216615441596416
8 427841964600197120
9 91657259616244334592
10 21176862196618565255168
11 5128490000396434702073856

List of values

[1248, 32768, 4325376, 587202560, 83751862272, 12919261626368, 2216615441596416, 427841964600197120, 91657259616244334592, 21176862196618565255168, 5128490000396434702073856]

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

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