Number of (2+2)X(n+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the central row and the central column and the two maximums of the diagonal and antidiagonal nondecreasing horizontally, vertically and ne-to-sw antidiagonally.
A254587
Number of (2+2)X(n+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the central row and the central column and the two maximums of the diagonal and antidiagonal nondecreasing horizontally, vertically and ne-to-sw antidiagonally.
Terms
- a(0) =2868a(1) =17125a(2) =96756a(3) =545360a(4) =3083065a(5) =17163021a(6) =94299759a(7) =513689395a(8) =2784287954a(9) =15033788426a(10) =81007656094a(11) =435782949444
External references
- oeis: A254587