A063641 Primes of form p*q*r - 2, where p, q and r are primes (not necessarily distinct).

43, 61, 73, 97, 103, 151, 163, 173, 193, 229, 271, 277, 283, 331, 367, 383, 397, 421, 433, 463, 547, 593, 601, 607, 613, 643, 661, 709, 739, 757, 773, 859, 883, 907, 929, 967, 1013, 1021, 1063, 1093, 1103, 1129, 1171, 1181, 1231, 1237, 1249, 1279, 1307

Offset: 1

Author

Reinhard Zumkeller, Jul 21 2001

Keywords

• nonn

Links

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

Crossrefs

Cf. A014612, A063639.

Programs

PARI

{ n=0; for (m=1, 10^9, p=prime(m); if (bigomega(p + 2) == 3, write("b063641.txt", n++, " ", p); if (n==1000, break)) ) } \\ Harry J. Smith, Aug 26 2009