Number of nX3 arrays of the minimum value of corresponding elements and their horizontal and vertical neighbors in a random 0..1 nX3 array.

A217632

Number of nX3 arrays of the minimum value of corresponding elements and their horizontal and vertical neighbors in a random 0..1 nX3 array.

Terms

    a(0) =0a(1) =4a(2) =16a(3) =66a(4) =244a(5) =968a(6) =3726a(7) =14520a(8) =56352a(9) =218978a(10) =850620a(11) =3304624a(12) =12837742a(13) =49872976a(14) =193747784a(15) =752680930a(16) =2924043092a(17) =11359448344a(18) =44129645550a(19) =171436683864a(20) =666004286592

External references