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10^n-th number divisible by exactly 3 distinct primes.
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%I #4 Mar 31 2012 10:26:07

%S 105,455,2988,26128,258764,2677258,28013887,293553638,3072062072,

%T 32084334808

%N 10^n-th number divisible by exactly 3 distinct primes.

%D J.-M. De Koninck, Ces nombres qui nous fascinent, Entry 455, pp 94, Ellipses, Paris 2008.

%F a(n)=A033992(10^n).

%Y Cf. A033992.

%K more,nonn

%O 1,1

%A _Lekraj Beedassy_, Jul 18 2008

%E a(8)-a(10) from _Donovan Johnson_, Mar 30 2010