OFFSET
1,1
LINKS
Amiram Eldar, Table of n, a(n) for n = 1..10000
MATHEMATICA
Select[Prime[Range[120]], PrimeNu[#-1] == 2 &] (* Amiram Eldar, Jun 06 2022 *)
PROG
(PARI) lista(nn) = {forprime(p=1, nn, if (omega(p-1) == 2, print1(p, ", ")); ); } \\ Michel Marcus, Nov 22 2013
CROSSREFS
KEYWORD
nonn
AUTHOR
Benoit Cloitre, Feb 23 2002
STATUS
approved