Numbers with exactly 3 distinct odd prime divisors {3,5,7}.

Terms

a(0) =105a(1) =315a(2) =525a(3) =735a(4) =945a(5) =1575a(6) =2205a(7) =2625a(8) =2835a(9) =3675a(10) =4725a(11) =5145a(12) =6615a(13) =7875a(14) =8505a(15) =11025a(16) =13125a(17) =14175a(18) =15435a(19) =18375a(20) =19845a(21) =23625a(22) =25515a(23) =25725a(24) =33075a(25) =36015a(26) =39375a(27) =42525a(28) =46305a(29) =55125