id:A154039 - OEIS Search Results

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Number of planar triangular n X n X n nonnegative integer grids with every similarly oriented 3 X 3 X 3 subtriangle summing to 4.

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126, 503, 1046, 1389, 1898, 1290, 897, 912, 621, 621, 900, 621, 621, 900, 621, 621, 900, 621, 621, 900, 621, 621, 900, 621, 621, 900, 621, 621, 900, 621, 621, 900, 621, 621, 900, 621, 621, 900, 621, 621, 900, 621, 621, 900, 621, 621, 900, 621, 621, 900, 621, 621, 900 (list; graph; listen)

	OFFSET	`3,1`
	COMMENT	`Pattern 621 621 900 starts at n=11 and continues through at least n=57.`
	EXAMPLE	`Maximal zeros solution for n=11` `............0` `...........0.0` `..........0.2.2` `.........2.0.0.0` `........0.0.2.0.0` `.......0.2.0.0.2.2` `......2.0.0.2.0.0.0` `.....0.0.2.0.0.2.0.0` `....0.2.0.0.2.0.0.2.2` `...2.0.0.2.0.0.2.0.0.0` `..0.0.2.0.0.2.0.0.2.0.0`
	CROSSREFS	`Sequence in context: A063334 A102805 A135192 this_sequence A165023 A107658 A004008` `Adjacent sequences: A154036 A154037 A154038 this_sequence A154040 A154041 A154042`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net) Jan 04 2009`

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Last modified December 21 10:15 EST 2009. Contains 171081 sequences.

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