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

A253841

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

Terms

    a(0) =512a(1) =2440a(2) =2440a(3) =8392a(4) =6339a(5) =8392a(6) =28540a(7) =17491a(8) =19970a(9) =28540a(10) =91296a(11) =50462a(12) =52014a(13) =60741a(14) =91296a(15) =263476a(16) =127376a(17) =135011a(18) =127483a(19) =129378a(20) =263476a(21) =709704a(22) =308576a(23) =294870a(24) =284109a(25) =135280a(26) =265117a(27) =709704a(28) =1850176a(29) =697720

External references