id:A140943 - OEIS Search Results

Search: id:A140943

Displaying 1-1 of 1 results found.

page 1

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.

+0
1

1, 705432, 79483257308, 2543610972177184, 31148053701600494400 (list; graph; listen)

	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: A010084 A114676 A027829 this_sequence A134615 A083613 A083614` `Adjacent sequences: A140940 A140941 A140942 this_sequence A140944 A140945 A140946`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin rhh(at)cadence.com, Jul 05 2008`

page 1

Search completed in 0.002 seconds

Last modified December 19 21:04 EST 2009. Contains 171054 sequences.