T(n,k) 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 2, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).
A235007
T(n,k) 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 2, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).
Terms
- a(0) =294a(1) =1946a(2) =1946a(3) =13848a(4) =14182a(5) =13848a(6) =104338a(7) =114796a(8) =114796a(9) =104338a(10) =800688a(11) =1049470a(12) =1053414a(13) =1049470a(14) =800688a(15) =6225088a(16) =10000516a(17) =11587376a(18) =11587376a(19) =10000516a(20) =6225088a(21) =48596088a(22) =98790336a(23) =134675868a(24) =162585790a(25) =134675868
External references
- oeis: A235007