A181323 - OEIS

A181323

Number of ways of placing n rods of length 3 in a 3x3x3 cubic lattice without any two rods intersecting (0 <= n <= 9).

1, 27, 270, 1278, 3078, 3888, 2592, 918, 189, 21 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`0,2`
	COMMENTS	`This appears in relation to the degeneracy of the ground states of certain 3-dimensional lattice models in statistical physics.`
	LINKS	`Table of n, a(n) for n=0..9.`
	CROSSREFS	`Row n=3 of A185697.` `Sequence in context: A126548 A108670 A136925 * A136926 A042412 A078876` `Adjacent sequences: A181320 A181321 A181322 * A181324 A181325 A181326`
	KEYWORD	`fini,full,nonn`
	AUTHOR	`Marcos Simoes, Jan 27 2011`
	STATUS	`approved`

Last modified January 31 17:40 EST 2023. Contains 359980 sequences. (Running on oeis4.)