Number of nX4 0..1 arrays with every element unequal to 0, 1, 3, 4, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

A317693

Number of nX4 0..1 arrays with every element unequal to 0, 1, 3, 4, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =5a(1) =21a(2) =33a(3) =141a(4) =630a(5) =2742a(6) =16008a(7) =100830a(8) =603699a(9) =3769795a(10) =24122000a(11) =151848663a(12) =958240276a(13) =6090267864a(14) =38598033209a(15) =244395851672

External references