T(n,k) is the number of (n+1) X (k+1) 0..7 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 4, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).

A235175

T(n,k) is the number of (n+1) X (k+1) 0..7 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 4, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).

Terms

    a(0) =268a(1) =1528a(2) =1528a(3) =8688a(4) =8380a(5) =8688a(6) =49464a(7) =45776a(8) =45776a(9) =49464a(10) =281580a(11) =250708a(12) =240020a(13) =250708a(14) =281580a(15) =1603344a(16) =1373616a(17) =1264228a(18) =1264228a(19) =1373616a(20) =1603344a(21) =9129276a(22) =7533616a(23) =6664620a(24) =6419300a(25) =6664620a(26) =7533616a(27) =9129276a(28) =51991032

External references