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%I #4 Mar 31 2012 13:20:07
%S 1,1,2,5,9,12,18,27,31,43,53,58,70,73,76,99,115,123,118,148,156,186,
%T 208,212,251,252,265,309,298,312,342,395,396,397,454,472,508,562,561,
%U 570,610,612,654,663,686,752,727
%N Sum of prime factors of Catalan numbers A000108(n), n>=2, with n=0 and n=1 terms added.
%C a(0) := 1=: a(2) for A000108(0)= 1 = A000108(1). Sometimes a(0)= 0 =a(1) is chosen instead.
%Y Cf. A001414 (for natural numbers), A064725 (for Fibonacci), A070827 (for Lucas).
%K nonn,easy
%O 0,3
%A _Wolfdieter Lang_, May 10, 2002