Number of 3Xn 0..1 arrays with no element less than a strict majority of its horizontal, diagonal and antidiagonal neighbors.

A231525

Number of 3Xn 0..1 arrays with no element less than a strict majority of its horizontal, diagonal and antidiagonal neighbors.

Terms

    a(0) =8a(1) =21a(2) =153a(3) =865a(4) =4665a(5) =25556a(6) =144847a(7) =817539a(8) =4574717a(9) =25577718a(10) =143371820a(11) =804082832a(12) =4506873305a(13) =25254564785a(14) =141534685147a(15) =793277267583

External references