A251915 - OEIS

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A251915

Number of (n+2)X(n+2) 0..3 arrays with every 3X3 subblock row and column sum 2 4 5 or 7 and every diagonal and antidiagonal sum not 2 4 5 or 7

1194, 3054, 6086, 25882, 340800, 6752446, 249690188, 13251150646, 1129132756936, 134581826099074, 26074659792166044, 7042204562689607110, 3076055248250450622008, 1874713355693280173742202 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,1`
	COMMENTS	`Diagonal of A251923`
	LINKS	`Table of n, a(n) for n=1..14.`
	EXAMPLE	`Some solutions for n=4` `..2..3..2..0..2..3....1..0..1..3..1..0....3..2..0..2..3..2....3..1..3..1..3..1` `..3..2..0..2..3..2....3..1..3..1..3..1....2..0..2..0..2..3....1..0..1..3..1..0` `..2..0..2..0..2..0....1..3..1..0..1..3....0..2..0..2..0..2....3..1..3..1..3..1` `..0..2..3..2..0..2....3..1..3..1..0..1....2..0..2..3..2..0....1..3..1..3..1..3` `..2..3..2..0..2..0....1..3..1..3..1..3....0..2..3..2..0..2....0..1..3..1..0..1` `..2..2..0..2..0..2....3..1..3..1..3..1....2..0..2..0..2..0....1..3..1..3..1..3`
	CROSSREFS	`Sequence in context: A103172 A251923 A251916 * A166221 A096955 A113898` `Adjacent sequences: A251912 A251913 A251914 * A251916 A251917 A251918`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin, Dec 11 2014`
	STATUS	`approved`

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Last modified July 5 14:54 EDT 2022. Contains 355099 sequences. (Running on oeis4.)