Number of (n+1)X(6+1) 0..1 arrays with 2X2 subblock sums lexicographically nondecreasing columnwise and rowwise.
A238253
Number of (n+1)X(6+1) 0..1 arrays with 2X2 subblock sums lexicographically nondecreasing columnwise and rowwise.
Terms
- a(0) =1482a(1) =29995a(2) =1473792a(3) =65450601a(4) =3320993180a(5) =128727296869
External references
- oeis: A238253