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A152080 a(n) are composite numbers for which A000695(a(n)) are primes 2
55, 77, 87, 91, 115, 117, 121, 171, 185, 203, 213, 253, 299 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

CROSSREFS

A000695 A077718 A152021 A152022 A152023 A152078 A152079

Sequence in context: A053719 A050781 A060260 * A119224 A135984 A140377

Adjacent sequences:  A152077 A152078 A152079 * A152081 A152082 A152083

KEYWORD

nonn

AUTHOR

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

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Last modified February 16 20:54 EST 2012. Contains 205966 sequences.