OFFSET
1,1
PROG
(PARI) p=2; print1(s=p, ", "); while(s<10^9, p=nextprime(p+1); a=p; while(a%s>0, p=nextprime(p+1); a=a+p); print1(s=a, ", "))
CROSSREFS
KEYWORD
nonn
AUTHOR
Amarnath Murthy, Feb 05 2003
EXTENSIONS
a(5), a(6) and PARI code from Klaus Brockhaus, Feb 13 2003
a(7) from Ryan Propper, Aug 29 2005
STATUS
approved