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

A254390

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

Terms

    a(0) =512a(1) =3372a(2) =3372a(3) =21304a(4) =35529a(5) =21304a(6) =136868a(7) =406548a(8) =409051a(9) =136868a(10) =881432a(11) =4711324a(12) =8533796a(13) =4766957a(14) =881432a(15) =5659548a(16) =54122833a(17) =174326376a(18) =175329586a(19) =54712559a(20) =5659548a(21) =36317408a(22) =623732385a(23) =3575408117a(24) =6208345944a(25) =3587965682

External references