A140937 - OEIS

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A140937

Number of 5 X 11 matrices with elements in 0..n with each row and each column in nondecreasing order. 5,11,n can be permuted, see formula.

1, 4368, 4504864, 1837984512, 381644355456, 46960429261824, 3792054662892288, 216147115784860416, 9183250377581777952, 303282730418598205184, 8048657076493567752960 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`0,2`
	LINKS	`Table of n, a(n) for n=0..10.`
	FORMULA	`(empirical) set p,q,r to n,11,5 (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: A031564 A347603 A217345 * A327789 A043598 A043843` `Adjacent sequences: A140934 A140935 A140936 * A140938 A140939 A140940`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin, Jul 05 2008`
	STATUS	`approved`

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Last modified November 28 12:20 EST 2022. Contains 358416 sequences. (Running on oeis4.)