T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with every 2X3 or 3X2 subblock having exactly two equal edges, and new values 0..3 introduced in row major order.

A206238

T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with every 2X3 or 3X2 subblock having exactly two equal edges, and new values 0..3 introduced in row major order.

Terms

    a(0) =15a(1) =60a(2) =60a(3) =310a(4) =256a(5) =310a(6) =1640a(7) =1136a(8) =1136a(9) =1640a(10) =8910a(11) =5728a(12) =4456a(13) =5728a(14) =8910a(15) =51066a(16) =31652a(17) =27168a(18) =27168a(19) =31652a(20) =51066a(21) =294546a(22) =170728a(23) =133392a(24) =283728a(25) =133392a(26) =170728a(27) =294546a(28) =1710184a(29) =943584

External references