Number of (n+1) X (1+1) 0..6 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 4 (constant-stress 1 X 1 tilings).
A234659
Number of (n+1) X (1+1) 0..6 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 4 (constant-stress 1 X 1 tilings).
Terms
- a(0) =298a(1) =1820a(2) =11112a(3) =68086a(4) =417050a(5) =2564388a(6) =15760606a(7) =97264082a(8) =599847168a(9) =3715680490a(10) =22995724082a(11) =142980376236a(12) =887988916630
External references
- oeis: A234659