id:A047945 - OEIS Search Results

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

+0
9

1, 10, 2530, 250025500, 2500000025005000, 2500000000002500005000000, 250000000000000000250000000500000000, 2500000000000000000000002500000000005000000000000 (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 = 10`
	CROSSREFS	`Cf. A047937-A047944.` `Sequence in context: A114776 A155870 A167775 this_sequence A132675 A123377 A061543` `Adjacent sequences: A047942 A047943 A047944 this_sequence A047946 A047947 A047948`
	KEYWORD	`nonn`
	AUTHOR	`Robert W. Pratt (Rob.Pratt(AT)sas.com)`

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Last modified December 18 21:37 EST 2009. Contains 171024 sequences.

AT&T Labs Research