A104735 Numbers n such that n and digital sum of n-th prime are primes.

2, 3, 5, 13, 19, 23, 37, 41, 43, 53, 61, 67, 71, 79, 89, 109, 131, 137, 139, 157, 167, 173, 199, 211, 227, 233, 239, 241, 269, 271, 277, 307, 311, 313, 331, 337, 349, 379, 383, 389, 397, 409, 433, 443, 449, 461, 463, 509, 523, 547, 557, 569, 571, 593, 599, 601

Offset

1,1

Links

Table of n, a(n) for n=1..56.

Crossrefs

Cf. A104736.

Sequence in context: A042047 A273939 A087763 * A157976 A155738 A215371

Adjacent sequences: A104732 A104733 A104734 * A104736 A104737 A104738

Keyword

nonn,base

Author

Zak Seidov, Mar 21 2005

Status

approved