Sophie Germain 4-almost primes.

Terms

a(0) =40a(1) =220a(2) =580a(3) =712a(4) =808a(5) =812a(6) =904a(7) =940a(8) =1062a(9) =1192a(10) =1444a(11) =1592a(12) =1612a(13) =1690a(14) =1812a(15) =1876a(16) =2002a(17) =2152a(18) =2212a(19) =2236a(20) =2254a(21) =2488a(22) =2502a(23) =2562a(24) =2650a(25) =2662a(26) =2788a(27) =3010a(28) =3052a(29) =3064