Semiprimes in A056106.

Terms

a(0) =25a(1) =141a(2) =185a(3) =235a(4) =291a(5) =753a(6) =851a(7) =955a(8) =1565a(9) =1851a(10) =2495a(11) =3235a(12) =3641a(13) =4295a(14) =5251a(15) =5765a(16) =6031a(17) =6865a(18) =8061a(19) =9353a(20) =9691a(21) =10741a(22) =11103a(23) =14215a(24) =14631a(25) =15481a(26) =16355a(27) =16801a(28) =17711a(29) =21085