Number of (n+2)X(4+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal median nondecreasing horizontally and vertically.
A253816
Number of (n+2)X(4+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal median nondecreasing horizontally and vertically.
Terms
- a(0) =47816a(1) =181070a(2) =554638a(3) =1713952a(4) =5585260a(5) =19866443a(6) =64664493a(7) =209048111a(8) =630001617a(9) =1924934567a(10) =5709557722a(11) =16907821580a(12) =49606011484a(13) =146306387392a(14) =435972233308
External references
- oeis: A253816