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%I #10 May 13 2013 01:54:07
%S 10,231,10296,563391,34974066,2374052871,171745762321,12989075028126,
%T 1016377282340160,81690831917887753,6708792934060150753,
%U 560785267822390134615,47573053155260626453431
%N Number of brilliant numbers whose prime factors each have n digits.
%C Number of brilliant numbers having 2n or 2n-1 digits.
%H Charles R Greathouse IV, <a href="/A087434/b087434.txt">Table of n, a(n) for n = 1..24</a>
%F a(n)=A000217(A006879(n)).
%o (PARI) a(n)=binomial(primepi(10^n)-primepi(10^(n-1))+1,2)
%o \\ _Charles R Greathouse IV_, May 03 2012
%Y Cf. A006879, A006880, A078972, A086846, A087435.
%K nonn,base
%O 1,1
%A _Ray Chandler_, Sep 02 2003
%E a(14) from _Ray Chandler_, Jul 21 2005
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