Number of (n+2)X(3+2) 0..1 arrays with every 3X3 subblock sum of the two maximums of the diagonal and antidiagonal minus the sum of the minimums of the central row and column nondecreasing horizontally, vertically and ne-to-sw antidiagonally.
A254255
Number of (n+2)X(3+2) 0..1 arrays with every 3X3 subblock sum of the two maximums of the diagonal and antidiagonal minus the sum of the minimums of the central row and column nondecreasing horizontally, vertically and ne-to-sw antidiagonally.
Terms
- a(0) =12616a(1) =72644a(2) =268900a(3) =718226a(4) =2192422a(5) =6729896a(6) =21120938a(7) =68298122a(8) =216717474a(9) =690324184a(10) =2237606074a(11) =7136863098a(12) =23081712162a(13) =74362141304a(14) =239411652586a(15) =774044161546
External references
- oeis: A254255