Number of (6+2)X(n+2) 0..1 arrays with every 3X3 subblock sum of the medians of the diagonal and antidiagonal minus the two sums of the central row and column nondecreasing horizontally, vertically and ne-to-sw antidiagonally.

A255761

Number of (6+2)X(n+2) 0..1 arrays with every 3X3 subblock sum of the medians of the diagonal and antidiagonal minus the two sums of the central row and column nondecreasing horizontally, vertically and ne-to-sw antidiagonally.

Terms

    a(0) =293012a(1) =156658a(2) =108201a(3) =177281a(4) =237248a(5) =473630a(6) =652833a(7) =1289436a(8) =2035202a(9) =4063736a(10) =6925353a(11) =13000120a(12) =22368324a(13) =42237154a(14) =75237569a(15) =135754954a(16) =239450238a(17) =455962216a(18) =854685889a(19) =1574304740a(20) =2916053420a(21) =5816374182a(22) =11500663421

External references