id:A047943 - OEIS Search Results

Search: id:A047943

Displaying 1-1 of 1 results found.

page 1

Number of 8-colorings of an n X n grid, up to rotational symmetry.

+0
1

1, 8, 1044, 33562880, 70368748374016, 9444732965876730429440, 81129638414606686199388699623424, 44601490397061246283080881278262737180295168 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`a(n) = (m^(n^2) + 2 m^((n^2 + 3 (n mod 2))/4) + m^((n^2 + (n mod 2))/2))/4, with m = 8`
	CROSSREFS	`Cf. A047937-A047945.` `Adjacent sequences: A047940 A047941 A047942 this_sequence A047944 A047945 A047946` `Sequence in context: A122067 A076688 A004808 this_sequence A089672 A003767 A117084`
	KEYWORD	`nonn`
	AUTHOR	`Robert W. Pratt (Rob.Pratt(AT)sas.com)`

page 1

Search completed in 0.002 seconds

Last modified October 11 09:12 EDT 2008. Contains 144832 sequences.

AT&T Labs Research