Number of (n+1) X (7+1) 0..5 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 3, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).
A235025
Number of (n+1) X (7+1) 0..5 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 3, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).
Terms
- a(0) =252032a(1) =738516a(2) =2152744a(3) =6442252a(4) =19332816a(5) =58903452a(6) =180093160a(7) =557393032a(8) =1730627064a(9) =5432005844a(10) =17096132520a(11) =54343145508a(12) =173136349816a(13) =556684686328
External references
- oeis: A235025