A172549 - OEIS

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A172549

Number of 2*n X n 0..1 arrays with row sums 4 and column sums 8

0, 0, 0, 1, 113400, 154700988750, 617944896216648000, 6637298299496411164868250, 176264656064665625137392456544800, 10697695830125272790880922760946584535000

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

OFFSET

1,5

LINKS

R. H. Hardin, Table of n, a(n) for n=1..25

CROSSREFS

Sequence in context: A103113 A179922 A122511 * A172589 A172692 A172648

Adjacent sequences: A172546 A172547 A172548 * A172550 A172551 A172552

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 06 2010

STATUS

approved