Number of n X 5 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.
A229399
Number of n X 5 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) =16a(1) =89a(2) =536a(3) =3357a(4) =21464a(5) =138645a(6) =899860a(7) =5852687a(8) =38099072a(9) =248105251a(10) =1615963560a(11) =10525963187a(12) =68565944112a(13) =446645329321
External references
- oeis: A229399