First subdiagonal of number array A083064.

A083071

First subdiagonal of number array A083064.

Terms

    a(0) =1a(1) =3a(2) =19a(3) =173a(4) =2001a(5) =28087a(6) =465011a(7) =8888889a(8) =192922993a(9) =4690709411a(10) =126370284195

External references