Number of ways to reciprocally link elements of an n X 6 array either to themselves or to exactly one king-move neighbor.

A220642

Number of ways to reciprocally link elements of an n X 6 array either to themselves or to exactly one king-move neighbor.

Terms

    a(0) =1a(1) =13a(2) =3096a(3) =373177a(4) =53841725a(5) =7444342896

External references