id:A166217 - OEIS Search Results

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Number of 9X9X9 triangular nonnegative integer arrays, symmetric under 120 degree rotation, with all sums of an element and its neighbors <= n

+0
1

1, 34, 665, 8865, 76249, 495985, 2661967, 11908924, 46316901, 161588843, 510043341, 1480441810, 4011008946, 10193915255, 24508598458, 56179164262, 123191992504, 259647495716, 528503830704, 1041183396446, 1991316075404 (list; graph; listen)

	OFFSET	`0,2`
	LINKS	`R. H. Hardin, Table of n, a(n) for n=0..26`
	CROSSREFS	`Sequence in context: A004418 A020928 A061689 this_sequence A016109 A028211 A028207` `Adjacent sequences: A166214 A166215 A166216 this_sequence A166218 A166219 A166220`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net) Oct 09 2009`

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Last modified December 20 00:58 EST 2009. Contains 171054 sequences.

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