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

A259006

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

Terms

    a(0) =512a(1) =2444a(2) =2444a(3) =9374a(4) =6271a(5) =9374a(6) =34698a(7) =18341a(8) =21073a(9) =34698a(10) =113474a(11) =50654a(12) =55760a(13) =59549a(14) =113474a(15) =330684a(16) =131557a(17) =159480a(18) =116098a(19) =130296a(20) =330684a(21) =914320a(22) =317141a(23) =397152a(24) =225215a(25) =142316a(26) =263417a(27) =914320a(28) =2433544a(29) =701282

External references