Number of (4+1)X(n+1) 0..2 arrays with 2X2 subblock sum of squares lexicographically nondecreasing rowwise and nonincreasing columnwise.
A235424
Number of (4+1)X(n+1) 0..2 arrays with 2X2 subblock sum of squares lexicographically nondecreasing rowwise and nonincreasing columnwise.
Terms
- a(0) =9504a(1) =533868a(2) =33411901a(3) =1782209164a(4) =93548701107
External references
- oeis: A235424