Number of (n+1)X(4+1) 0..1 arrays with the sum of each 2X2 subblock two median terms lexicographically nondecreasing columnwise and nonincreasing rowwise.
A235761
Number of (n+1)X(4+1) 0..1 arrays with the sum of each 2X2 subblock two median terms lexicographically nondecreasing columnwise and nonincreasing rowwise.
Terms
- a(0) =378a(1) =3900a(2) =41446a(3) =375746a(4) =3328260a(5) =26947867a(6) =210973948a(7) =1565770379a(8) =11256123354a(9) =78072050576a(10) =527123759962
External references
- oeis: A235761