Semiprimes in A033951.

Terms

a(0) =46a(1) =77a(2) =218a(3) =1073a(4) =1351a(5) =1502a(6) =1661a(7) =2186a(8) =2998a(9) =4193a(10) =4727a(11) =5006a(12) =5293a(13) =5891a(14) =7183a(15) =8603a(16) =10558a(17) =12266a(18) =13631a(19) =14581a(20) =15563a(21) =19811a(22) =20953a(23) =25202a(24) =27806a(25) =29843a(26) =30538a(27) =31241a(28) =32671a(29) =33398