Number of (n+1)X(3+1) 0..3 arrays with no element unequal to a strict majority of its horizontal, diagonal and antidiagonal neighbors, with values 0..3 introduced in row major order.
A231459
Number of (n+1)X(3+1) 0..3 arrays with no element unequal to a strict majority of its horizontal, diagonal and antidiagonal neighbors, with values 0..3 introduced in row major order.
Terms
- a(0) =14a(1) =38a(2) =100a(3) =272a(4) =741a(5) =2093a(6) =6036a(7) =17569a(8) =51839a(9) =154480a(10) =465438a(11) =1413661a(12) =4328633a(13) =13343012a(14) =41361410a(15) =128843945a(16) =402969212a(17) =1264606727a(18) =3979686619a(19) =12552988405a(20) =39670815296a(21) =125565825987a(22) =397948664649
External references
- oeis: A231459