id:A154031 - OEIS Search Results

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Number of planar triangular n X n X n nonnegative integer grids with every similarly oriented 4 X 4 X 4 subtriangle summing to 2.

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55, 118, 138, 97, 37, 21, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15 (list; graph; listen)

	OFFSET	`4,1`
	COMMENT	`Value 15 starts at n=10 and continues through at least n=60.`
	EXAMPLE	`Maximal zeros solution for n=10` `...........0` `..........0.0` `.........0.0.1` `........0.1.0.0` `.......1.0.0.0.0` `......0.0.0.0.1.0` `.....0.0.0.1.0.0.0` `....0.0.1.0.0.0.0.1` `...0.1.0.0.0.0.1.0.0` `..1.0.0.0.0.1.0.0.0.0`
	CROSSREFS	`Sequence in context: A044144 A044525 A118151 this_sequence A044242 A044623 A063345` `Adjacent sequences: A154028 A154029 A154030 this_sequence A154032 A154033 A154034`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net) Jan 04 2009`

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Last modified December 7 08:40 EST 2009. Contains 170430 sequences.

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