

A233167


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


1



1248, 32768, 4325376, 587202560, 83751862272, 12919261626368, 2216615441596416, 427841964600197120, 91657259616244334592, 21176862196618565255168, 5128490000396434702073856
(list;
graph;
refs;
listen;
history;
text;
internal format)




