Number of (n+1)X(7+1) 0..1 arrays with 2X2 subblock sums lexicographically nondecreasing rowwise and nonincreasing columnwise.
A235412
Number of (n+1)X(7+1) 0..1 arrays with 2X2 subblock sums lexicographically nondecreasing rowwise and nonincreasing columnwise.
Terms
- a(0) =3249a(1) =62070a(2) =1623115a(3) =48788187a(4) =1561049902a(5) =48150637857
External references
- oeis: A235412