id:A154057 - OEIS Search Results

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Number of planar triangular n X n X n nonnegative integer grids symmetric under 120 degree rotation with every similarly oriented 4 X 4 X 4 subtriangle summing to 6.

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10, 25, 36, 74, 46, 40, 70, 47, 49, 20, 13, 19, 17, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13 (list; graph; listen)

	OFFSET	`4,1`
	COMMENT	`Value 13 starts at n=17 and continues through at least n=60.`
	CROSSREFS	`Sequence in context: A048195 A133634 A014090 this_sequence A074814 A002600 A087473` `Adjacent sequences: A154054 A154055 A154056 this_sequence A154058 A154059 A154060`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net) Jan 04 2009`

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Last modified December 10 12:37 EST 2009. Contains 170569 sequences.

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