A104637 Number of even digits in n-th prime.

1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 1, 1, 0, 0, 1, 1, 0, 0, 0, 1, 1, 0, 1, 1, 1, 1, 0, 1, 0, 0, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 0, 0, 0, 1, 2, 2, 2, 1, 1, 2, 1, 1, 2, 2, 1, 1, 2, 2, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 2, 2, 1, 2, 1, 1, 1, 2, 2, 1, 2, 2, 2, 1, 2, 1, 1, 1, 1, 1, 1, 1

Offset: 1

Author

Zak Seidov, Mar 18 2005

Keywords

• easy
• nonn
• base

Crossrefs

Number of odd digits in n-th prime gives A104638.

Formula

a(n) = A196563(A000040(n)). - Michel Marcus, Oct 05 2013