OFFSET
1,1
FORMULA
a(1) = 2, a(2) = 3, for n>=2, a(n+1) = a(n) + sum_{1<=k<n, a(k) does not divide a(n)} a(k).
CROSSREFS
KEYWORD
nonn
AUTHOR
Franklin T. Adams-Watters, Jun 16 2006
STATUS
approved