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A099184 Heavy primes: primes p such that p-1 has more than 2 divisors with multiplicity. 1
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 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,1

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

MATHEMATICA

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

PROG

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

CROSSREFS

Cf. A059456.

Sequence in context: A054476 A319504 A339912 * A098095 A249953 A180530

Adjacent sequences:  A099181 A099182 A099183 * A099185 A099186 A099187

KEYWORD

nonn

AUTHOR

Cino Hilliard, Nov 15 2004

STATUS

approved

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Last modified April 15 13:37 EDT 2021. Contains 342977 sequences. (Running on oeis4.)