id:A154035 - OEIS Search Results

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Number of planar triangular n X n X n nonnegative integer grids with mirror symmetry about one altitude with every similarly oriented 5 X 5 X 5 subtriangle summing to 3.

+0
1

28, 42, 30, 16, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 (list; graph; listen)

	OFFSET	`5,1`
	COMMENT	`Value 1 starts at n=11 and continues through at least n=60.`
	EXAMPLE	`Maximal zeros solution for n=11` `............1` `...........0.0` `..........0.1.0` `.........0.0.0.0` `........0.0.1.0.0` `.......1.0.0.0.0.1` `......0.0.0.1.0.0.0` `.....0.1.0.0.0.0.1.0` `....0.0.0.0.1.0.0.0.0` `...0.0.1.0.0.0.0.1.0.0` `..1.0.0.0.0.1.0.0.0.0.1`
	CROSSREFS	`Sequence in context: A084807 A047630 A135789 this_sequence A025368 A025359 A056031` `Adjacent sequences: A154032 A154033 A154034 this_sequence A154036 A154037 A154038`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net) Jan 04 2009`

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Last modified December 1 19:22 EST 2009. Contains 167811 sequences.

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