id:A166215 - OEIS Search Results

Search: id:A166215

Displaying 1-1 of 1 results found.

page 1

Number of 7X7X7 triangular nonnegative integer arrays, symmetric under 120 degree rotation, with all sums of an element and its neighbors <= n

+0
1

1, 13, 90, 553, 2376, 8064, 25771, 70603, 172012, 405175, 875990, 1765534, 3484228, 6508702, 11604117, 20390870, 34490146, 56425254, 91343551, 143775379, 220716013, 336122564, 500966646, 732267501, 1063633842, 1518831488 (list; graph; listen)

	OFFSET	`0,2`
	LINKS	`R. H. Hardin, Table of n, a(n) for n=0..63`
	CROSSREFS	`Sequence in context: A152867 A026912 A057788 this_sequence A131700 A156947 A139613` `Adjacent sequences: A166212 A166213 A166214 this_sequence A166216 A166217 A166218`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net) Oct 09 2009`

page 1

Search completed in 0.002 seconds

Last modified December 8 08:31 EST 2009. Contains 170430 sequences.

AT&T Labs Research