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%I #2 Mar 31 2012 13:21:31
%S 1,2,3,6,7,19,38,49,118,197,440,716,992,1268,1544,1820,2040,2313,9524,
%T 12113,33210,45596,60298,74944,89646,102032,116678,129067,684624,
%U 826077,1219334,2189180,2203807,7807703,15615406,18789059,50019871,100039302
%N Sum of previous term and preceding relatively prime terms.
%F a(1)=1, a(2)=2, for n>=2, a(n+1) = a(n) + sum_{1<=k<n, gcd(a(n),a(k))=1} a(k).
%Y Cf. A120610.
%K nonn
%O 1,2
%A _Franklin T. Adams-Watters_, Jun 16 2006