Number of (n+1)X(7+1) 0..1 arrays with 2X2 subblock sums lexicographically nondecreasing columnwise and rowwise.
A238254
Number of (n+1)X(7+1) 0..1 arrays with 2X2 subblock sums lexicographically nondecreasing columnwise and rowwise.
Terms
- a(0) =3249a(1) =90225a(2) =7616082a(3) =640472606a(4) =64353451945
External references
- oeis: A238254