A142157 Last digit of A003319(n).

1, 1, 3, 3, 1, 1, 7, 3, 3, 5, 3, 7, 5, 3, 3, 3, 3, 1, 3, 5, 1, 7, 9, 1, 5, 1, 7, 7, 3, 7, 7, 3, 9, 5, 1, 3, 9, 9, 1, 5, 3, 5, 5, 7, 1, 5, 1, 5, 9, 5, 3, 3, 5, 1, 9, 7, 9, 9, 5, 5, 5, 9, 1, 1, 3, 3, 1, 1, 7, 3, 3, 5, 3, 7, 5, 3, 3, 3, 3, 1, 3, 5, 1, 7, 9, 1, 5, 1, 7, 7, 3, 7, 7, 3, 9, 5, 1, 3, 9, 9, 1

Offset: 1

Author

Paul Curtz, Sep 16 2008

Keywords

• nonn
• base
• less

Formula

A003319(n) mod 10.

Extensions

Edited and extended by R. J. Mathar, Feb 23 2009