OFFSET
2,1
PROG
(PARI) f(n) = for(p=1, n, for(x=1, n, y=x-p; z=x+p; if(isprime(y)&isprime(z)&isprime(x), print1(x", "); break)))
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Cino Hilliard, Oct 06 2004
STATUS
approved