Number of strings of n distinct digits from 1-9 that are the last n digits of a square in base 9.

A036754

Number of strings of n distinct digits from 1-9 that are the last n digits of a square in base 9.

Terms

    a(0) =3a(1) =21a(2) =126a(3) =630a(4) =2520a(5) =7560a(6) =15120a(7) =15120

External references