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A152079 a(n) are primes for which A000695(a(n)) are also primes. +0
3
3, 5, 17, 23, 29, 43, 47, 53, 61, 83, 107, 139, 149, 151, 173, 179, 181, 191, 229, 233, 239, 257, 263, 269, 277 (list; graph; listen)
OFFSET

1,1

COMMENT

Numbers a(n) are in A077718. Conjecture. The sequence contains infinitely many terms.

CROSSREFS

A000695 A077718 A152021 A152022 A152023 A152078

Sequence in context: A038891 A020592 A152078 this_sequence A027699 A153417 A069687

Adjacent sequences: A152076 A152077 A152078 this_sequence A152080 A152081 A152082

KEYWORD

nonn

AUTHOR

Vladimir Shevelev (shevelev(AT)bgu.ac.il), Nov 23 2008

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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