A166223 - OEIS

A166223

Number of 15X15X15 triangular nonnegative integer arrays, symmetric under 120 degree rotation, with all sums of an element and its neighbors <= n

1, 6460, 14252749, 10459516337, 2908246084285, 398461742491565 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`0,2`
	LINKS	`Table of n, a(n) for n=0..5.`
	CROSSREFS	`Sequence in context: A248998 A256090 A067928 * A206538 A288083 A232134` `Adjacent sequences: A166220 A166221 A166222 * A166224 A166225 A166226`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin Oct 09 2009`
	STATUS	`approved`

Last modified August 12 11:14 EDT 2022. Contains 356069 sequences. (Running on oeis4.)