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%I #5 Dec 05 2013 19:56:20
%S 1,2,9,35,14641,2873,47045881,20677,2301289,160683647,
%T 174887470365513049,14226847,16409682740640811134241,11955403876831,
%U 375917360641,107972737,397030588105939686862303733490241,26979607331
%N a(1) = 1, then numbers coprime to all previous terms such that tau(a(n)) = n, where tau(k) = number of divisors of k.
%e a(5) = 11^4, tau(14641) = 5 and a(6)= 2873 = 13^2*17 and tau(2873) = 6.
%K nonn
%O 1,2
%A _Amarnath Murthy_, Aug 29 2003
%E More terms from _David Wasserman_, Mar 25 2005