A217231 - OEIS

A217231

Number of triangular nXnXn arrays of occupancy after each element moves to some neighbor but without 2-loops and with no occupancy greater than 5.

0, 1, 47, 5227, 2001776, 2840672270, 15140206096832 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,3`
	COMMENTS	`Column 5 of A217232.`
	LINKS	`Table of n, a(n) for n=1..7.`
	EXAMPLE	`Some solutions for n=4` `.....0........0........0........0........1........0........0........0` `....1.3......1.0......2.0......1.0......1.0......3.0......1.1......1.1` `...1.1.2....2.3.1....2.2.3....1.5.0....2.2.1....1.2.2....1.1.2....2.1.2` `..1.0.0.1..0.0.3.0..1.0.0.0..1.1.1.0..0.2.0.1..1.0.1.0..0.2.2.0..0.1.1.1`
	CROSSREFS	`Sequence in context: A194617 A217229 A217230 * A141797 A101629 A267063` `Adjacent sequences: A217228 A217229 A217230 * A217232 A217233 A217234`
	KEYWORD	`nonn,hard,more`
	AUTHOR	`R. H. Hardin, Sep 28 2012`
	STATUS	`approved`

Last modified May 25 21:44 EDT 2022. Contains 354071 sequences. (Running on oeis4.)