id:A154059 - OEIS Search Results

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Number of planar triangular n X n X n nonnegative integer grids with every similarly oriented 4 X 4 X 4 subtriangle summing to 6.

+0
1

5005, 42379, 161481, 327971, 465436, 588412, 315265, 126740, 40993, 9833, 4891, 3523, 2084, 2080, 2080, 2080, 2080, 2080, 2080, 2080, 2080, 2080, 2080, 2080, 2080, 2080, 2080, 2080, 2080, 2080, 2080, 2080, 2080, 2080, 2080, 2080, 2080, 2080, 2080 (list; graph; listen)

	OFFSET	`4,1`
	COMMENT	`Value 2080 starts at n=17 and continues through at least n=50.`
	EXAMPLE	`Maximal zeros solution for n=17` `..................0` `.................0.0` `................0.0.3` `...............0.3.0.0` `..............3.0.0.0.0` `.............0.0.0.0.3.0` `............0.0.0.3.0.0.0` `...........0.0.3.0.0.0.0.3` `..........0.3.0.0.0.0.3.0.0` `.........3.0.0.0.0.3.0.0.0.0` `........0.0.0.0.3.0.0.0.0.3.0` `.......0.0.0.3.0.0.0.0.3.0.0.0` `......0.0.3.0.0.0.0.3.0.0.0.0.3` `.....0.3.0.0.0.0.3.0.0.0.0.3.0.0` `....3.0.0.0.0.3.0.0.0.0.3.0.0.0.0` `...0.0.0.0.3.0.0.0.0.3.0.0.0.0.3.0` `..0.0.0.3.0.0.0.0.3.0.0.0.0.3.0.0.0`
	CROSSREFS	`Sequence in context: A108011 A018188 A067226 this_sequence A138637 A140921 A112139` `Adjacent sequences: A154056 A154057 A154058 this_sequence A154060 A154061 A154062`
	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.

AT&T Labs Research