id:A154061 - 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 6.

+0
1

300, 782, 945, 1120, 906, 954, 767, 352, 274, 247, 240, 284, 240, 240, 240, 240, 284, 240, 240, 240, 240, 284, 240, 240, 240, 240, 284, 240, 240, 240, 240, 284, 240, 240, 240, 240, 284, 240, 240, 240, 240, 284, 240, 240, 240, 240, 284, 240, 240, 240, 240, 284, 240 (list; graph; listen)

	OFFSET	`5,1`
	COMMENT	`Pattern 240 284 240 240 240 starts at n=15 and continues through at least n=59.`
	EXAMPLE	`Maximal zeros solution for n=15` `................2` `...............0.0` `..............0.2.0` `.............0.0.0.0` `............0.0.2.0.0` `...........2.0.0.0.0.2` `..........0.0.0.2.0.0.0` `.........0.2.0.0.0.0.2.0` `........0.0.0.0.2.0.0.0.0` `.......0.0.2.0.0.0.0.2.0.0` `......2.0.0.0.0.2.0.0.0.0.2` `.....0.0.0.2.0.0.0.0.2.0.0.0` `....0.2.0.0.0.0.2.0.0.0.0.2.0` `...0.0.0.0.2.0.0.0.0.2.0.0.0.0` `..0.0.2.0.0.0.0.2.0.0.0.0.2.0.0`
	CROSSREFS	`Sequence in context: A096511 A116346 A102509 this_sequence A054026 A128391 A092715` `Adjacent sequences: A154058 A154059 A154060 this_sequence A154062 A154063 A154064`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net) Jan 04 2009`

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Last modified December 6 22:55 EST 2009. Contains 170429 sequences.

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