A154042 - OEIS

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A154042

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

715, 3278, 7090, 8188, 5593, 4377, 1618, 601, 228, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220, 220 (list; graph; refs; listen; history; internal format)

	OFFSET	`4,1`
	COMMENTS	`Value 220 starts at n=13 and continues through at least n=60.`
	EXAMPLE	`Maximal zeros solution for n=13` `..............0` `.............0.0` `............0.0.2` `...........0.2.0.0` `..........2.0.0.0.0` `.........0.0.0.0.2.0` `........0.0.0.2.0.0.0` `.......0.0.2.0.0.0.0.2` `......0.2.0.0.0.0.2.0.0` `.....2.0.0.0.0.2.0.0.0.0` `....0.0.0.0.2.0.0.0.0.2.0` `...0.0.0.2.0.0.0.0.2.0.0.0` `..0.0.2.0.0.0.0.2.0.0.0.0.2`
	CROSSREFS	`Sequence in context: A166829 A005467 A029565 * A027809 A030537 A140919` `Adjacent sequences: A154039 A154040 A154041 * A154043 A154044 A154045`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin (rhhardin(AT)att.net) Jan 04 2009`

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Last modified February 16 11:51 EST 2012. Contains 205908 sequences.