Number of nX6 1..4 arrays with no element with value z exactly a city block distance of z from another element with value z.

A210786

Number of nX6 1..4 arrays with no element with value z exactly a city block distance of z from another element with value z.

Terms

    a(0) =1407a(1) =167910a(2) =3846906a(3) =69751928a(4) =1663213556a(5) =51104966068

External references