A168250 a(n) = sum of digits of A168174(n).

17, 13, 17, 13, 17, 17, 17, 17, 31, 17, 17, 17, 17, 17, 13, 17, 17, 17, 13, 17, 17, 31, 31, 31, 13, 17, 13, 17, 17, 17, 17, 31, 13, 13, 17, 13, 17, 17, 13, 17, 31, 31, 31, 17, 17, 31, 13, 17, 31, 17, 17, 13, 37, 31, 17, 31, 17, 31, 31, 13, 31, 13, 17, 17, 31, 37, 31, 17, 31

Offset: 1

Author

Zak Seidov, Nov 21 2009

Keywords

• base
• nonn

Crossrefs

Cf. A006567, A168174, A168248.