A094317 Primes n with property that sum of digits that are primes is prime.

2, 3, 5, 7, 13, 17, 23, 29, 31, 43, 47, 59, 67, 71, 79, 83, 97, 103, 107, 113, 131, 139, 151, 163, 167, 179, 193, 197, 211, 223, 227, 239, 241, 251, 263, 269, 281, 283, 293, 311, 337, 349, 353, 373, 389, 421, 431, 439, 443, 463, 467, 479, 487, 509

Offset: 1

Author

Harvey Dale, May 31 2004

Keywords

• nonn
• base

Crossrefs

Cf. A094318.