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A225295 Pandigital numbers with exactly 4 prime factors (with multiplicity).

%I A225295 #19 May 21 2013 00:56:58
%S A225295 1023456987,1023458679,1023458967,1023465798,1023465897,1023465978,
%T A225295 1023465987,1023467589,1023467859,1023468579,1023468597,1023468795,
%U A225295 1023469758,1023478569,1023479586,1023479865,1023485967,1023486579,1023486957,1023487659,1023487965,1023489657,1023495678
%N A225295 Pandigital numbers with exactly 4 prime factors (with multiplicity).
%H A225295 Charles R Greathouse IV, <a href="/A225295/b225295.txt">Table of n, a(n) for n = 1..10000</a>
%F A225295 A014613 INTERSECTION A171102.
%F A225295 a(n) ~ 6n log n / (log log n)^3. - _Charles R Greathouse IV_, May 04 2013
%e A225295 a(1) = 1023456987 = 3^2 * 7 * 16245349.
%e A225295 a(2) = 1023458679 = 3^3 * 37905877.
%e A225295 a(3) = 1023458967 = 3^2 * 113 * 1006351.
%e A225295 a(4) = 1023465897 = 3^2 * 6379 * 17827.
%e A225295 a(5) = 1023465987 = 3^2 * 53 * 2145631.
%e A225295 a(511032) = 10123456987 = 7^2 * 9833 * 21011.
%o A225295 (PARI) is(n)=#vecsort(digits(n),,8)>9 && bigomega(n)==4 \\ _Charles R Greathouse IV_, May 04 2013
%Y A225295 Cf. A001358, A014613, A221646.
%Y A225295 Cf. A050288 (pandigital primes), A175845 (pandigital numbers).
%Y A225295 Cf. A171102 (3-almost primes).
%K A225295 nonn,base,easy
%O A225295 1,1
%A A225295 _Jonathan Vos Post_, May 04 2013
%E A225295 a(6)-a(23) from _Charles R Greathouse IV_, May 04 2013