T(n,k) is the number of (n+1) X (k+1) 0..5 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 5, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).
A235186
T(n,k) is the number of (n+1) X (k+1) 0..5 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 5, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).
Terms
- a(0) =72a(1) =212a(2) =212a(3) =576a(4) =560a(5) =576a(6) =1696a(7) =1400a(8) =1400a(9) =1696a(10) =4656a(11) =3796a(12) =3240a(13) =3796a(14) =4656a(15) =13736a(16) =9780a(17) =8224a(18) =8224a(19) =9780a(20) =13736a(21) =38064a(22) =27080a(23) =19952a(24) =19584a(25) =19952a(26) =27080a(27) =38064a(28) =112504a(29) =71244
External references
- oeis: A235186