Number of nX3 0..1 arrays with every element equal to 2, 3, 4, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

A300170

Number of nX3 0..1 arrays with every element equal to 2, 3, 4, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =0a(1) =3a(2) =9a(3) =37a(4) =192a(5) =932a(6) =4712a(7) =23795a(8) =120610a(9) =612315a(10) =3110338a(11) =15805917a(12) =80334285a(13) =408339140a(14) =2075677553a(15) =10551347780a(16) =53636527966a(17) =272656370832

External references