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 6 (constant-stress 1 X 1 tilings).
A235309
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 6 (constant-stress 1 X 1 tilings).
Terms
- a(0) =32006a(1) =46226a(2) =64326a(3) =107186a(4) =168998a(5) =319826a(6) =568902a(7) =1192946a(8) =2360486a(9) =5359826a(10) =11572806a(11) =27942386a(12) =64584998a(13) =163604306a(14) =398458182a(15) =1048568306a(16) =2659410086a(17) =7215704786a(18) =18894569286a(19) =52538233586a(20) =141126255398a(21) =400114549586
External references
- oeis: A235309