Number of (n+2)X(3+2) 0..3 arrays with no element unequal to a strict majority of its horizontal, vertical, diagonal and antidiagonal neighbors, with values 0..3 introduced in row major order.
A231436
Number of (n+2)X(3+2) 0..3 arrays with no element unequal to a strict majority of its horizontal, vertical, diagonal and antidiagonal neighbors, with values 0..3 introduced in row major order.
Terms
- a(0) =3a(1) =8a(2) =21a(3) =54a(4) =185a(5) =561a(6) =1943a(7) =6756a(8) =24003a(9) =88488a(10) =325775a(11) =1225789a(12) =4623559a(13) =17568716a(14) =67018935a(15) =256235910a(16) =982016953a(17) =3767662049a(18) =14470021611a(19) =55610192696a(20) =213805376253a(21) =822314635406
External references
- oeis: A231436