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%I #5 Dec 05 2013 19:55:51
%S 4,40,42,420,4290,43890,4001970,40029990,406816410,40026056070,
%T 401120980260,40013061952710,405332750552730,40111962162442170,
%U 4000228915204892370,40909794684132183810,4000669166940700163910
%N Smallest number beginning with 4 and having exactly n distinct prime divisors.
%e a(1) = 4, a(3) = 42.
%Y Cf. A077326, A077327, A077328, A077330, A077331, A077332, A077333, A077334.
%Y Cf. A106411-A106419, A106421-A106429.
%K base,nonn
%O 1,1
%A _Amarnath Murthy_, Nov 04 2002
%E a(5)-a(10) from _Ray Chandler_, Apr 17 2005
%E More terms from _Ray Chandler_, May 02 2005