Three-dimensional small Schroeder numbers.

A105124

Three-dimensional small Schroeder numbers.

Terms

    a(0) =1a(1) =1a(2) =11a(3) =197a(4) =4593a(5) =126289a(6) =3888343a(7) =130016393a(8) =4629617873a(9) =173225211953

External references