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A063642 Primes of form p*q*r + 2, where p, q and r are primes. 2
29, 47, 101, 107, 127, 149, 167, 173, 197, 233, 257, 263, 277, 281, 347, 359, 389, 401, 431, 457, 467, 479, 509, 541, 557, 563, 577, 607, 617, 641, 647, 653, 659, 727, 743, 761, 797, 863, 887, 911, 929, 937, 971, 983, 1019, 1087, 1097, 1129, 1181, 1187 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Harry J. Smith, Table of n, a(n) for n=1,...,1000

PROG

(PARI) { n=0; for (m=2, 10^9, p=prime(m); if (bigomega(p - 2) == 3, write("b063642.txt", n++, " ", p); if (n==1000, break)) ) } [From Harry J. Smith, Aug 26 2009]

CROSSREFS

A014612, A063640.

Sequence in context: A119891 A106754 A222413 * A108258 A232236 A228585

Adjacent sequences:  A063639 A063640 A063641 * A063643 A063644 A063645

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Jul 21 2001

STATUS

approved

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Last modified August 29 08:06 EDT 2015. Contains 261188 sequences.