OFFSET
1,1
COMMENTS
210 is the first integer in A120944 but not here: it has 4 prime factors.
LINKS
Amiram Eldar, Table of n, a(n) for n = 1..10000
FORMULA
MATHEMATICA
Select[Range@ 161, And[SquareFreeQ@ #, PrimeQ@ PrimeNu@ #] &] (* Michael De Vlieger, Sep 29 2019 *)
PROG
(PARI) isok(n) = issquarefree(n) && isprime(omega(n)); \\ Michel Marcus, Sep 27 2019
CROSSREFS
KEYWORD
nonn
AUTHOR
Sebastian F. Orellana, Sep 26 2019
EXTENSIONS
Corrected and extended by Michel Marcus, Sep 27 2019
STATUS
approved