id:A140940 - OEIS Search Results

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Number of 8 X 11 matrices with elements in 0..n with each row and each column in nondecreasing order. 8,11,n can be permuted, see formula.

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1, 75582, 1057896060, 4783805983320, 9271015995674160, 9183250377581777952, 5247874388850386800416 (list; graph; listen)

	OFFSET	`0,2`
	FORMULA	`(empirical) set p,q,r to n,11,8 (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	`Adjacent sequences: A140937 A140938 A140939 this_sequence A140941 A140942 A140943` `Sequence in context: A104846 A116620 A045731 this_sequence A135209 A091294 A096518`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin rhh(at)cadence.com, Jul 05 2008`

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Last modified October 6 12:54 EDT 2008. Contains 144667 sequences.