Smallest k such that gcd(c(k),k) = gcd(A002808(k),k) = A064814(k) = n.

Terms

a(0) =1a(1) =2a(2) =12a(3) =20a(4) =5a(5) =6a(6) =7a(7) =64a(8) =234a(9) =50a(10) =55a(11) =24a(12) =26a(13) =28a(14) =30a(15) =32a(16) =629a(17) =1008a(18) =209a(19) =220a(20) =231a(21) =1012a(22) =506a(23) =168a(24) =425a(25) =182a(26) =189a(27) =2716a(28) =2204a(29) =1080