A067212 - OEIS

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A067212

Number of n X n 0..4 matrices with all row and column sums equal.

5, 25, 1001, 790425, 11991502235, 3632894572698505 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	EXAMPLE	`Some solutions for n=3` `..4..4..3....2..1..1....2..1..1....4..0..4....1..2..4....3..2..2....3..2..1` `..4..3..4....1..3..0....2..0..2....0..4..4....2..3..2....2..1..4....0..3..3` `..3..4..4....1..0..3....0..3..1....4..4..0....4..2..1....2..4..1....3..1..2`
	CROSSREFS	`Sequence in context: A176594 A169652 A137114 * A061583 A039780 A033981` `Adjacent sequences: A067209 A067210 A067211 * A067213 A067214 A067215`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin (rhhardin(AT)att.net), Feb 20 2002`
	EXTENSIONS	`Added one term and example - R. H. Hardin, Jan 05 2012`

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Last modified February 14 18:09 EST 2012. Contains 205663 sequences.