1 together with products of 2 or more distinct primes.

Terms

a(0) =1a(1) =6a(2) =10a(3) =14a(4) =15a(5) =21a(6) =22a(7) =26a(8) =30a(9) =33a(10) =34a(11) =35a(12) =38a(13) =39a(14) =42a(15) =46a(16) =51a(17) =55a(18) =57a(19) =58a(20) =62a(21) =65a(22) =66a(23) =69a(24) =70a(25) =74a(26) =77a(27) =78a(28) =82a(29) =85