A204152 - OEIS

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A204152

Number of (n+2)X9 0..2 arrays with every 3X3 subblock having equal diagonal elements or equal antidiagonal elements, and new values 0..2 introduced in row major order

23538722, 169527242, 864266300, 4577683574, 25275772916, 138134688554, 770374556792, 4130467300382, 22550685062612, 121999878097538, 662599450745240, 3588969319485734, 19369358858520164, 104916399180100634 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,1`
	COMMENTS	`Column 7 of A204153`
	LINKS	`R. H. Hardin, Table of n, a(n) for n = 1..21`
	EXAMPLE	`Some solutions for n=4` `..0..1..1..0..1..1..2..2..2....0..0..0..0..1..2..1..0..0` `..2..0..1..1..1..1..1..2..1....1..0..0..1..0..1..2..0..1` `..1..2..0..1..1..1..1..1..2....0..0..1..0..1..0..0..2..2` `..0..0..2..0..1..1..1..1..0....0..1..0..1..0..0..0..0..2` `..0..2..0..2..0..1..1..1..1....1..0..1..0..0..0..0..0..0` `..2..2..0..0..2..0..1..1..1....1..1..0..0..1..0..0..0..0`
	CROSSREFS	`Sequence in context: A104951 A235971 A187551 * A132906 A234342 A104922` `Adjacent sequences: A204149 A204150 A204151 * A204153 A204154 A204155`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin Jan 11 2012`
	STATUS	`approved`

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Last modified March 26 11:14 EDT 2023. Contains 361542 sequences. (Running on oeis4.)