Subdiagonal of square array A081297.

A081302

Subdiagonal of square array A081297.

Terms

    a(0) =1a(1) =1a(2) =21a(3) =61a(4) =1891a(5) =9633a(6) =404713a(7) =2997541a(8) =159902271a(9) =1564345201a(10) =101406750589

External references