Number of (n+1) X (4+1) 0..1 arrays with the sum of each 2 X 2 subblock two extreme terms minus its two median terms lexicographically nondecreasing rowwise and columnwise.
A235552
Number of (n+1) X (4+1) 0..1 arrays with the sum of each 2 X 2 subblock two extreme terms minus its two median terms lexicographically nondecreasing rowwise and columnwise.
Terms
- a(0) =288a(1) =2878a(2) =33851a(3) =378570a(4) =3824372a(5) =33823017a(6) =265989722a(7) =1875119528a(8) =12064334056a(9) =71470709789a(10) =394816481079
External references
- oeis: A235552