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 5 (constant-stress 1 X 1 tilings).
A234702
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 5 (constant-stress 1 X 1 tilings).
Terms
- a(0) =408a(1) =2628a(2) =2628a(3) =16848a(4) =13952a(5) =16848a(6) =109224a(7) =74308a(8) =74308a(9) =109224a(10) =704160a(11) =409268a(12) =329984a(13) =409268a(14) =704160a(15) =4594320a(16) =2261220a(17) =1558600a(18) =1558600a(19) =2261220a(20) =4594320a(21) =29782080a(22) =12903164a(23) =7424496a(24) =6480632a(25) =7424496a(26) =12903164a(27) =29782080a(28) =195532704
External references
- oeis: A234702