Number of (5+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal minimum nondecreasing horizontally, vertically and ne-to-sw antidiagonally.
A257430
Number of (5+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal minimum nondecreasing horizontally, vertically and ne-to-sw antidiagonally.
Terms
- a(0) =150016a(1) =403951a(2) =1290910a(3) =4442466a(4) =12316842a(5) =39029574a(6) =121832476a(7) =359681533a(8) =1066288882a(9) =3126365543a(10) =8921825684a(11) =25527972436a(12) =72826289929a(13) =206321352365a(14) =583012447599
External references
- oeis: A257430