A172681 Number of 4*n X n 0..2 arrays with row sums 5 and column sums 20

0, 0, 34650, 54067759732546560, 3138774474975381117998859525561, 4611389774049135678307206605901825339706084920, 118146008179337031214747923950181684918919939516291368598887900

Offset

1,3

Links

R. H. Hardin, Table of n, a(n) for n=1..11

Crossrefs

Sequence in context: A172672 A172770 A172838 * A251448 A259002 A259009

Adjacent sequences: A172678 A172679 A172680 * A172682 A172683 A172684

Keyword

nonn

Author

R. H. Hardin Feb 06 2010

Status

approved