Number of nX4 0..1 arrays with every element equal to 0, 2, 3, 5, 6 or 8 king-move adjacent elements, with upper left element zero.

A299454

Number of nX4 0..1 arrays with every element equal to 0, 2, 3, 5, 6 or 8 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =1a(1) =18a(2) =19a(3) =48a(4) =175a(5) =508a(6) =1522a(7) =5065a(8) =16968a(9) =56041a(10) =187865a(11) =632318a(12) =2129542a(13) =7184550a(14) =24247946a(15) =81877297a(16) =276519444a(17) =934064187a(18) =3155663032a(19) =10661937499a(20) =36024652028a(21) =121723990676a(22) =411304232139

External references