Number of (n+1)X(2+1) 0..2 arrays with the sum of each 2X2 subblock maximum and minimum lexicographically nondecreasing columnwise and nonincreasing rowwise.
A235738
Number of (n+1)X(2+1) 0..2 arrays with the sum of each 2X2 subblock maximum and minimum lexicographically nondecreasing columnwise and nonincreasing rowwise.
Terms
- a(0) =576a(1) =9710a(2) =160075a(3) =2423417a(4) =36199157a(5) =523547651a(6) =7519969703a(7) =106697433668
External references
- oeis: A235738