Number of (n+2)X(5+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal minimum nondecreasing horizontally, vertically and ne-to-sw antidiagonally.
A254550
Number of (n+2)X(5+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal minimum nondecreasing horizontally, vertically and ne-to-sw antidiagonally.
Terms
- a(0) =170504a(1) =375458a(2) =1194944a(3) =3638432a(4) =8246808a(5) =22791266a(6) =59711718a(7) =169166380a(8) =447759396a(9) =1237374354a(10) =3333073203a(11) =9168863223a(12) =24999349110a(13) =68495198609a(14) =186835863523a(15) =510752061583
External references
- oeis: A254550