T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with no 2X2 subblock having its minimum diagonal element less than its minimum antidiagonal element.

A251100

T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with no 2X2 subblock having its minimum diagonal element less than its minimum antidiagonal element.

Terms

    a(0) =13a(1) =41a(2) =41a(3) =129a(4) =212a(5) =129a(6) =406a(7) =1109a(8) =1109a(9) =406a(10) =1278a(11) =5817a(12) =9597a(13) =5817a(14) =1278a(15) =4023a(16) =30517a(17) =82814a(18) =82814a(19) =30517a(20) =4023a(21) =12664a(22) =160086a(23) =713769a(24) =1175519a(25) =713769a(26) =160086a(27) =12664a(28) =39865a(29) =839758

External references