A239037 a(n) = prime digit in A092621(n).

2, 3, 5, 7, 3, 7, 2, 3, 3, 7, 5, 7, 7, 7, 3, 7, 3, 7, 3, 3, 3, 5, 3, 7, 7, 3, 7, 2, 2, 2, 2, 3, 3, 3, 2, 3, 3, 3, 3, 7, 7, 7, 5, 5, 5, 5, 7, 3, 7, 3, 3, 7, 5, 3, 7, 7, 7, 7, 7, 2, 2, 3, 5, 3, 3, 7, 7, 2, 7, 7, 7, 3, 7, 3, 2, 3, 3, 5, 3, 7, 3, 7, 3, 7, 2, 5, 3, 7, 7, 3, 2, 2, 2, 2, 3, 3, 3, 3, 3, 2, 3, 7, 5, 5, 7, 3, 7, 3, 5, 5, 7, 3, 2, 3, 7, 3, 7, 7, 7, 7, 3, 7, 7, 7, 7, 7, 3, 3, 5, 7, 7, 3, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2

Offset: 1

Author

Zak Seidov, Mar 09 2014

Keywords

• nonn
• base

Comments

From first 12000 terms, numbers of 2s, 3s, 5s, and 7s are: 2308, 3729, 2267, 3696. Note that numbers of 2s and 5s are very close to each other, and the same is for numbers of 3s and 7s.

Crossrefs

Cf. A092621