A199125 - OEIS

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A199125

Number of nXn 0..2 arrays with values 0..2 introduced in row major order, the number of instances of each value within one of each other, and no element equal to any horizontal or vertical neighbor

1, 2, 6, 258, 11475, 438502, 358599045, 247746055048, 141388449764548 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,2`
	COMMENTS	`Diagonal of A199133`
	LINKS	`Table of n, a(n) for n=1..9.`
	EXAMPLE	`Some solutions for n=5` `..0..1..0..1..0....0..1..2..1..2....0..1..2..1..2....0..1..0..2..1` `..2..0..1..0..2....2..0..1..0..1....1..2..1..2..0....1..0..2..0..2` `..1..2..0..2..1....0..2..0..1..2....2..0..2..0..1....0..2..1..2..1` `..0..1..2..1..2....1..0..2..0..1....0..2..1..2..0....1..0..2..1..0` `..1..2..0..2..1....2..1..0..2..0....1..0..2..0..1....0..2..1..0..2`
	CROSSREFS	`Sequence in context: A181772 A183398 A052342 * A232696 A007190 A164829` `Adjacent sequences: A199122 A199123 A199124 * A199126 A199127 A199128`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin Nov 03 2011`
	STATUS	`approved`

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Last modified September 11 14:11 EDT 2015. Contains 261536 sequences.