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 (constant-stress 1 X 1 tilings).
A234681
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 (constant-stress 1 X 1 tilings).
Terms
- a(0) =112a(1) =404a(2) =404a(3) =1264a(4) =1152a(5) =1264a(6) =4568a(7) =2924a(8) =2924a(9) =4568a(10) =14368a(11) =9108a(12) =6328a(13) =9108a(14) =14368a(15) =52016a(16) =25292a(17) =17312a(18) =17312a(19) =25292a(20) =52016a(21) =164416a(22) =82956a(23) =43240a(24) =41832a(25) =43240a(26) =82956a(27) =164416a(28) =596192a(29) =243164
External references
- oeis: A234681