Number of (n+1)X(4+1) 0..2 arrays with no element unequal to a strict majority of its horizontal, vertical and antidiagonal neighbors, with values 0..2 introduced in row major order.

A231298

Number of (n+1)X(4+1) 0..2 arrays with no element unequal to a strict majority of its horizontal, vertical and antidiagonal neighbors, with values 0..2 introduced in row major order.

Terms

    a(0) =12a(1) =51a(2) =301a(3) =1934a(4) =12150a(5) =78028a(6) =503290a(7) =3300161a(8) =21613114a(9) =142211597a(10) =935498770a(11) =6162356043a(12) =40586946972a(13) =267431775698

External references