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

A254189

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

Terms

    a(0) =512a(1) =2908a(2) =2908a(3) =14096a(4) =20380a(5) =14096a(6) =66144a(7) =142088a(8) =140108a(9) =66144a(10) =299472a(11) =968448a(12) =1465824a(13) =939056a(14) =299472a(15) =1303600a(16) =6170408a(17) =14601048a(18) =13994248a(19) =5818936a(20) =1303600a(21) =5525648a(22) =38010356a(23) =138055264a(24) =199474076a(25) =124599008a(26) =35265504a(27) =5525648

External references