Number of n X 6 0..2 arrays with top left element 0, horizontal differences mod 3 never 1, vertical differences mod 3 never -1, and antidiagonal differences never 0.
A229400
Number of n X 6 0..2 arrays with top left element 0, horizontal differences mod 3 never 1, vertical differences mod 3 never -1, and antidiagonal differences never 0.
Terms
- a(0) =32a(1) =233a(2) =1881a(3) =15952a(4) =138645a(5) =1220881a(6) =10826489a(7) =96353860a(8) =859094433a(9) =7666628193a(10) =68448003800a(11) =611244200474
External references
- oeis: A229400