Number of 4Xn 0..1 arrays with no element equal to a strict majority of its horizontal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.

A279744

Number of 4Xn 0..1 arrays with no element equal to a strict majority of its horizontal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.

Terms

    a(0) =0a(1) =26a(2) =168a(3) =736a(4) =2948a(5) =11434a(6) =42494a(7) =154886a(8) =554894a(9) =1962216a(10) =6863344a(11) =23793932a(12) =81876322a(13) =279975202a(14) =952219158a(15) =3223476464a(16) =10867630142a(17) =36506995228a(18) =122242241376a(19) =408146874402

External references