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A104735 Numbers n such that n and digital sum of n-th prime are primes. 1
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 (list; graph; refs; listen; history; text; internal format)
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

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Last modified December 8 14:51 EST 2022. Contains 358695 sequences. (Running on oeis4.)