Number of (n+1) X (4+1) 0..7 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 4, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).
A235172
Number of (n+1) X (4+1) 0..7 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 4, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).
Terms
- a(0) =49464a(1) =250708a(2) =1264228a(3) =6419300a(4) =32642908a(5) =166600788a(6) =851849276a(7) =4369637236a(8) =22453582476a(9) =115730224136a(10) =597466831456
External references
- oeis: A235172