A154093 - OEIS

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A154093

Number of planar triangular n X n X n nonnegative integer grids symmetric under 120 degree rotation with every similarly oriented 5 X 5 X 5 subtriangle summing to 15.

126, 1131, 9526, 8779, 13757, 78476, 63531, 47267, 239549, 59060 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`5,1`
	LINKS	`Table of n, a(n) for n=5..14.`
	CROSSREFS	`Sequence in context: A126170 A151989 A104678 * A172139 A194717 A002953` `Adjacent sequences: A154090 A154091 A154092 * A154094 A154095 A154096`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin Jan 04 2009`
	STATUS	`approved`

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Last modified May 25 06:38 EDT 2013. Contains 225644 sequences.