Number of (n+1) X (4+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).

A235022

Number of (n+1) X (4+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) =4704a(1) =15572a(2) =51220a(3) =170568a(4) =569352a(5) =1912444a(6) =6442252a(7) =21811720a(8) =74044552a(9) =252514496a(10) =863227916a(11) =2963538436a(12) =10196465900a(13) =35222100660a(14) =121914919708a(15) =423563796488

External references