Number of nX4 0..1 arrays with no element unequal to a strict majority of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.

A280176

Number of nX4 0..1 arrays with no element unequal to a strict majority of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.

Terms

    a(0) =3a(1) =41a(2) =279a(3) =1633a(4) =8759a(5) =43094a(6) =202693a(7) =919058a(8) =4057457a(9) =17554353a(10) =74755040a(11) =314269010a(12) =1307053311a(13) =5386675841a(14) =22025521567a(15) =89442385391a(16) =361014889345

External references