Number of nX3 0..1 arrays with every element unequal to 1, 2, 3, 4, 5 or 6 king-move adjacent elements, with upper left element zero.

A305687

Number of nX3 0..1 arrays with every element unequal to 1, 2, 3, 4, 5 or 6 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =1a(1) =25a(2) =152a(3) =1151a(4) =8415a(5) =61796a(6) =453553a(7) =3329201a(8) =24436772a(9) =179369495a(10) =1316598259a(11) =9664023496a(12) =70935343213a(13) =520675774985

External references