Even semiprimes such that the next semiprime is also even.

Terms

a(0) =4a(1) =10a(2) =58a(3) =274a(4) =382a(5) =454a(6) =458a(7) =538a(8) =614a(9) =1082a(10) =1234a(11) =1318a(12) =1478a(13) =1618a(14) =1718a(15) =1874a(16) =2062a(17) =2374a(18) =2554a(19) =2846a(20) =2902a(21) =3574a(22) =3722a(23) =3998a(24) =4174a(25) =4258a(26) =4474a(27) =4946a(28) =5098a(29) =5414