Number of (n+1) X (5+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).
A235255
Number of (n+1) X (5+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) =39680a(1) =102000a(2) =251656a(3) =717452a(4) =1951752a(5) =5990204a(6) =17480904a(7) =56590772a(8) =174061880a(9) =586251132a(10) =1878570184a(11) =6520782212a(12) =21592361736a(13) =76732245020a(14) =260994094488a(15) =945046085492
External references
- oeis: A235255