Number of (n+1) X (1+1) 0..4 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 3 (constant-stress 1 X 1 tilings).
A234220
Number of (n+1) X (1+1) 0..4 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 3 (constant-stress 1 X 1 tilings).
Terms
- a(0) =104a(1) =436a(2) =1824a(3) =7696a(4) =32384a(5) =137536a(6) =582144a(7) =2488576a(8) =10594304a(9) =45577216a(10) =195108864a(11) =844435456a(12) =3633741824a(13) =15814967296a(14) =68379869184a(15) =299119476736
External references
- oeis: A234220