A172636 Number of n X 7 0..2 arrays with row sums 7 and column sums n.

1, 393, 35617, 7343449, 1509893001, 360255871641, 91358224634433, 24567498558526617, 6887820148172502169, 1998635481349606292593, 596268326872362183077193, 182062424087215419645579529

Offset

1,2

Links

R. H. Hardin, Table of n, a(n) for n=1..47

Crossrefs

Column k=7 of A334549.

Sequence in context: A227942 A201815 A201554 * A202046 A172737 A172813

Adjacent sequences: A172633 A172634 A172635 * A172637 A172638 A172639

Keyword

nonn

Author

R. H. Hardin, Feb 06 2010

Status

approved