A154034 - OEIS

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A154034

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

56, 164, 248, 207, 155, 94, 34, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28 (list; graph; refs; listen; history; internal format)

	OFFSET	`3,1`
	COMMENTS	`Value 28 starts at n=10 and continues through at least n=60.`
	EXAMPLE	`Maximal zeros solution for n=10` `...........0` `..........0.2` `.........1.0.0` `........1.0.1.0` `.......0.0.1.1.0` `......0.2.0.0.0.2` `.....1.0.0.1.1.0.0` `....1.0.1.0.1.0.1.0` `...0.0.1.1.0.0.1.1.0` `..0.2.0.0.0.2.0.0.0.2`
	CROSSREFS	`Sequence in context: A038850 A044388 A044769 * A115620 A136547 A200833` `Adjacent sequences: A154031 A154032 A154033 * A154035 A154036 A154037`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin (rhhardin(AT)att.net) Jan 04 2009`

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Last modified February 17 23:40 EST 2012. Contains 206085 sequences.