Number of nX6 0..1 arrays with no element unequal to more than four of its king-move neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.

A283664

Number of nX6 0..1 arrays with no element unequal to more than four of its king-move neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.

Terms

    a(0) =0a(1) =40a(2) =50383a(3) =1712052a(4) =34315385a(5) =554477876a(6) =7883014615a(7) =103248064080

External references