A199258 - OEIS

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A199258

Number of 3nX2 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 every element equal to exactly one horizontal or vertical neighbor

3, 36, 449, 6024, 83890, 1203424, 17634348, 262690636, 3964097574, 60448089272, 929736185578, 14403575178424, 224514368663504, 3518109050510528, 55381725681044520, 875329086340050012, 13884232495508832254 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,1`
	COMMENTS	`3n elements of column 2 of A199261`
	LINKS	`R. H. Hardin, Table of n, a(n) for n = 1..99`
	EXAMPLE	`Some solutions for n=3` `..0..0....0..0....0..0....0..1....0..0....0..1....0..0....0..0....0..1....0..0` `..1..1....1..1....1..1....0..1....1..1....0..1....1..2....1..1....0..1....1..1` `..0..2....0..0....2..2....2..2....0..0....2..2....1..2....2..0....1..2....2..2` `..0..2....2..2....1..1....0..1....2..2....0..0....0..0....2..0....1..2....1..1` `..2..1....1..1....0..2....0..1....1..1....2..2....2..2....1..1....2..0....0..0` `..2..1....2..2....0..2....2..0....2..2....1..1....1..1....2..0....2..0....2..2` `..1..0....0..0....1..1....2..0....1..1....0..0....2..2....2..0....1..1....0..0` `..1..0....2..1....2..2....1..2....2..0....1..2....0..0....1..1....2..2....1..1` `..2..2....2..1....0..0....1..2....2..0....1..2....1..1....2..2....0..0....2..2`
	CROSSREFS	`Sequence in context: A055303 A068177 A099670 * A203493 A224256 A223912` `Adjacent sequences: A199255 A199256 A199257 * A199259 A199260 A199261`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin Nov 04 2011`
	STATUS	`approved`

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Last modified May 22 16:38 EDT 2013. Contains 225553 sequences.