OFFSET
0,2
COMMENTS
Max Alekseyev showed that this sequence is finite; proof completed by several people to show that the list is complete.
EXAMPLE
13 is not in the set because 13 = 4 + 9. 15 = 6 + 9 does not prevent 15 from being in the set because gcd(6,9) = 3.
CROSSREFS
KEYWORD
nonn,fini,full
AUTHOR
Franklin T. Adams-Watters, Jul 22 2004
STATUS
approved