A172711 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give

A172711

Number of 7*n X 7 0..2 arrays with row sums 2 and column sums 2*n

9135630, 18126466426218150, 76497104228450459248094400, 447362835296127429187676764430583750, 3140955188547844588635579044406639849274718880

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

R. H. Hardin, Table of n, a(n) for n=1..14

CROSSREFS

Sequence in context: A015350 A233613 A172620 * A187675 A205615 A251399

Adjacent sequences: A172708 A172709 A172710 * A172712 A172713 A172714

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 06 2010

STATUS

approved