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

1,1

Links

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

Prog

(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

Crossrefs

Cf. A014612, A063639.

Sequence in context: A235149 A064508 A102540 * A129928 A317393 A253848

Adjacent sequences: A063638 A063639 A063640 * A063642 A063643 A063644

Keyword

nonn

Author

Reinhard Zumkeller, Jul 21 2001

Status

approved