A099184 Heavy primes: primes p such that p-1 has more than 2 divisors with multiplicity.

13, 17, 19, 29, 31, 37, 41, 43, 53, 61, 67, 71, 73, 79, 89, 97, 101, 103, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 173, 181, 191, 193, 197, 199, 211, 223, 229, 233, 239, 241, 251, 257, 269, 271, 277, 281, 283, 293, 307, 311, 313, 317, 331, 337, 349

Offset: 2

Author

Cino Hilliard, Nov 15 2004

Keywords

• nonn

Comments

Also called "unsafe" primes, although this terms usually includes 2 and 3.

Links

• Harvey P. Dale, Table of n, a(n) for n = 2..1000

Crossrefs

Cf. A059456.

Programs

Mathematica

Select[Prime[Range[70]],PrimeOmega[#-1]>2&] (* Harvey P. Dale, May 28 2012 *)

PARI

f(n) = forprime(x=2,n,y=bigomega(x-1);if(y>2,print1(x",")))