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A104736
Numbers n such that n and digital sums of n and n-th prime are primes.
1
2, 3, 5, 23, 41, 43, 61, 67, 89, 131, 137, 139, 157, 173, 199, 227, 241, 269, 311, 313, 331, 337, 379, 397, 409, 443, 449, 461, 463, 557, 571, 593, 599, 601, 607, 647, 683, 751, 797, 821, 827, 881, 883, 911, 953, 977
OFFSET
1,1
CROSSREFS
Cf. A104735.
Sequence in context: A339062 A215313 A215317 * A090710 A153477 A080016
KEYWORD
nonn,base
AUTHOR
Zak Seidov, Mar 21 2005
STATUS
approved