T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock sum greater than 6.

A184217

T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock sum greater than 6.

Terms

    a(0) =106a(1) =1036a(2) =1036a(3) =9247a(4) =30994a(5) =9247a(6) =85600a(7) =808007a(8) =808007a(9) =85600a(10) =782637a(11) =22249026a(12) =57181621a(13) =22249026a(14) =782637a(15) =7189899a(16) =601469417a(17) =4411909035a(18) =4411909035a(19) =601469417a(20) =7189899a(21) =65937529a(22) =16373312263a(23) =330196807919a(24) =977644225220

External references