Number of (n+2) X (4+2) 0..1 arrays with every 3 X 3 subblock diagonal sum minus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally.
A254800
Number of (n+2) X (4+2) 0..1 arrays with every 3 X 3 subblock diagonal sum minus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally.
Terms
- a(0) =47816a(1) =121701a(2) =362924a(3) =1075560a(4) =3369689a(5) =11139423a(6) =33038951a(7) =101966575a(8) =299746659a(9) =918337028a(10) =2734158171a(11) =8245249775a(12) =24762486913a(13) =74914476443a(14) =228202658309a(15) =695565801656
External references
- oeis: A254800