Number of nX4 0..1 arrays with every element unequal to 1, 2, 3, 5 or 6 king-move adjacent elements, with upper left element zero.

A304693

Number of nX4 0..1 arrays with every element unequal to 1, 2, 3, 5 or 6 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =2a(1) =45a(2) =178a(3) =918a(4) =4910a(5) =24408a(6) =124399a(7) =641663a(8) =3271834a(9) =16747810a(10) =85795064a(11) =438971334a(12) =2247194765a(13) =11504929439a(14) =58893248470a(15) =301494626010

External references