T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X3 or 3X2 subblock having exactly two clockwise edge increases.

A205986

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X3 or 3X2 subblock having exactly two clockwise edge increases.

Terms

    a(0) =81a(1) =423a(2) =423a(3) =2232a(4) =1980a(5) =2232a(6) =11568a(7) =8004a(8) =8004a(9) =11568a(10) =60432a(11) =33504a(12) =27060a(13) =33504a(14) =60432a(15) =315357a(16) =140802a(17) =103998a(18) =103998a(19) =140802a(20) =315357a(21) =1643538a(22) =591336a(23) =408411a(24) =419088a(25) =408411a(26) =591336a(27) =1643538a(28) =8574615a(29) =2482596

External references