%I
%S 81,135,189,225,297,315,351,375,441,459,495,513,525,585,621,625,693,
%T 735,765,783,819,825,837,855,875,975,999,1029,1035,1071,1089,1107,
%U 1155,1161,1197,1225,1269,1275,1287,1305,1365,1375,1395,1425,1431,1449,1521
%N Odd numbers divisible by exactly 4 primes (counted with multiplicity).
%H Zak Seidov, <a href="/A046317/b046317.txt">Table of n, a(n) for n = 1..10000</a> (terms 1..1000 from Harvey P. Dale)
%t Select[Range[1,1601,2],PrimeOmega[#]==4&] (* _Harvey P. Dale_, Aug 15 2014 *)
%Y Cf. A014613.
%K nonn
%O 1,1
%A _Patrick De Geest_, Jun 15 1998
%E Offset corrected by _Zak Seidov_, May 03 2020
