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%I #19 May 10 2014 09:52:30
%S 16,24,3456,466560,5927040,6350400,771573600,838252800,990186120000,
%T 102979356480000,112378266000000,12379589782560000,133730136540000000,
%U 140865976625774400000,1553794408841875200000,16774637597496979200000,17868635701681564800000
%N The smallest number beginning with n that can be decomposed into divisors consisting exclusively of the first n semiprimes.
%C This is to A225903 as semiprimes A001358 are to prime A000040, and as Product of the first n semiprimes A112141 is to Primorials A002110.
%H Christian N. K. Anderson, <a href="/A226296/b226296.txt">Table of n, a(n) for n = 1..375</a>
%H Christian N. K. Anderson, <a href="/A226296/a226296.txt">Decomposition of the first 376 terms,</a> indicating semiprime factors whose exponents are greater than one.
%e a(1) = 16, the smallest multiple of the first semiprime (4) that begins with leftmost digit 1.
%e a(2) = 24 = 4 * 6, the product of the first 2 semiprimes, and already begins with 2.
%Y Cf. A001358, A112141, A225903.
%K nonn,easy,base
%O 1,1
%A _Jonathan Vos Post_, _Christian N. K. Anderson_, and _Kevin L. Schwartz_, Jun 02 2013