id:A154086 - 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 12.

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6864, 38731, 89236, 192947, 244956, 380962, 449908, 332543, 208807, 111992, 56454, 30336, 15354, 12787, 12323, 12236, 14364, 12235, 12235, 12235, 12235, 14364, 12235, 12235, 12235, 12235, 14364, 12235, 12235, 12235, 12235, 14364, 12235, 12235, 12235 (list; graph; listen)

	OFFSET	`5,1`
	COMMENT	`Pattern 14364 12235 12235 12235 12235 starts at n=21 and continues through at least n=52.`
	CROSSREFS	`Sequence in context: A114772 A013811 A013892 this_sequence A064351 A062678 A018848` `Adjacent sequences: A154083 A154084 A154085 this_sequence A154087 A154088 A154089`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net) Jan 04 2009`

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

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