Number of (n+1)X(2+1) 0..2 arrays with every 2X2 subblock diagonal maximum minus antidiagonal maximum unequal to its neighbors horizontally, vertically and nw-se diagonally.
A253656
Number of (n+1)X(2+1) 0..2 arrays with every 2X2 subblock diagonal maximum minus antidiagonal maximum unequal to its neighbors horizontally, vertically and nw-se diagonally.
Terms
- a(0) =518a(1) =3318a(2) =25062a(3) =181308a(4) =1284808a(5) =9172142a(6) =65613880a(7) =467877898a(8) =3342085566a(9) =23863144636a(10) =170361773052
External references
- oeis: A253656