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%I #14 Oct 26 2019 18:00:10
%S 1,1,2,3,7,6,20,21,44,50,143,108,376,364,738,987,2583,1938,6764,6150,
%T 13938,17622,46367,34776,113957,121160,257114,306852,832039,549000,
%U 2178308,2178309,4595932,5701290,13686704,11197764,39088168,39083988
%N a(n) = Sum_{1<=k<=n, gcd(k,n)=1} Fibonacci(k).
%e The 12th term is F(1) + F(5) + F(7) + F(11) = 1 + 5 + 13 + 89 = 108, where F(n) is the n-th Fibonacci number and 1, 5, 7 and 11 are the positive integers <= 12 and relatively prime to 12.
%Y Cf. A000045 (Fibonacci numbers).
%K nonn
%O 1,3
%A _Leroy Quet_, May 16 2002
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