id:A153919 - OEIS Search Results

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Number of planar n X n X n binary triangular grids symmetric both under 120 degree rotation and reflection with no more than 2 ones in any 5 X 5 X 5 subtriangle.

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1, 2, 1, 1, 2, 1, 2, 5, 4, 7, 14, 16, 20, 63, 57, 108, 299, 347, 613, 2185, 2276, 5449, 17797, 25318, 53655, 235092, 303467, 840222, 3331923, 5849149, 14333903 (list; graph; listen)

	OFFSET	`0,2`
	CROSSREFS	`Sequence in context: A131325 A049824 A133087 this_sequence A153905 A165357 A048996` `Adjacent sequences: A153916 A153917 A153918 this_sequence A153920 A153921 A153922`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net) Jan 03 2009`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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