Number of (n+1) X (7+1) 0..2 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 2 (constant-stress 1 X 1 tilings).
A234265
Number of (n+1) X (7+1) 0..2 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 2 (constant-stress 1 X 1 tilings).
Terms
- a(0) =3104a(1) =3746a(2) =4924a(3) =7304a(4) =11876a(5) =21164a(6) =39508a(7) =77060a(8) =152564a(9) =308756a(10) =627124a(11) =1294964a(12) =2673716a(13) =5617844a(14) =11778868a(15) =25220660a(16) =53769524a(17) =117585716a(18) =255267124a(19) =570940724a(20) =1262696756a(21) =2888073524a(22) =6501509428a(23) =15179569460a(24) =34712242484
External references
- oeis: A234265