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

A253801

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

Terms

    a(0) =512a(1) =2908a(2) =2908a(3) =14096a(4) =22284a(5) =14096a(6) =66144a(7) =162604a(8) =162604a(9) =66144a(10) =299472a(11) =1143216a(12) =1876256a(13) =1143216a(14) =299472a(15) =1303600a(16) =7346584a(17) =19600428a(18) =19600428a(19) =7346584a(20) =1303600a(21) =5525648a(22) =45394736a(23) =185592928a(24) =300044272a(25) =185592928a(26) =45394736

External references