Number of (n+2)X(2+2) 0..1 arrays with every 3X3 subblock diagonal median plus antidiagonal median nondecreasing horizontally and vertically.
A258904
Number of (n+2)X(2+2) 0..1 arrays with every 3X3 subblock diagonal median plus antidiagonal median nondecreasing horizontally and vertically.
Terms
- a(0) =2736a(1) =15416a(2) =86968a(3) =510095a(4) =2769733a(5) =14722533a(6) =77704089a(7) =402403692a(8) =2062226823a(9) =10488813781a(10) =52939478488a(11) =265527812185
External references
- oeis: A258904