The left hand column of the triangle A160468.

A160469

The left hand column of the triangle A160468.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =17a(4) =62a(5) =1382a(6) =21844a(7) =929569a(8) =6404582a(9) =443861162a(10) =18888466084

External references