A140943 - OEIS

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A140943

Number of 11 X 11 matrices with elements in 0..n with each row and each column in nondecreasing order. 11,11,n can be permuted, see formula.

1, 705432, 79483257308, 2543610972177184, 31148053701600494400 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	FORMULA	`(empirical) set p,q,r to n,11,11 (in any order) in s=p+q+r-1; a(n) = product {i in 0..r-1} (binomial(s,p+i)*i!/(s-i)^(r-i-1))`
	CROSSREFS	`Sequence in context: A204496 A183835 A203834 * A134615 A186607 A083613` `Adjacent sequences: A140940 A140941 A140942 * A140944 A140945 A140946`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin rhh(at)cadence.com, Jul 05 2008`

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Last modified February 16 06:41 EST 2012. Contains 205862 sequences.