Number of (n+1) X (3+1) 0..7 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 7, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).
A235253
Number of (n+1) X (3+1) 0..7 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 7, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).
Terms
- a(0) =2672a(1) =8328a(2) =24232a(3) =80812a(4) =251656a(5) =878988a(6) =2873128a(7) =10362212a(8) =35132248a(9) =129681452a(10) =452445096a(11) =1699526196a(12) =6067071432a(13) =23102391980a(14) =84025709016a(15) =323468947012
External references
- oeis: A235253