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
Keywords
Links
- R. H. Hardin, Table of n, a(n) for n=1..47
Crossrefs
Column k=7 of A334549.