Number of (n+1) X (2+1) 0..6 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 6 (constant-stress 1 X 1 tilings).
A234817
Number of (n+1) X (2+1) 0..6 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 6 (constant-stress 1 X 1 tilings).
Terms
- a(0) =686a(1) =2220a(2) =6282a(3) =22098a(4) =68570a(5) =252486a(6) =828354a(7) =3136350a(8) =10660586a(9) =41107950a(10) =143165922a(11) =559043598a(12) =1982378090a(13) =7810154766a(14) =28090231074a(15) =111378700110a(16) =405255972266
External references
- oeis: A234817