Interprimes which are of the form s*prime, s=20.

Terms

a(0) =60a(1) =260a(2) =1220a(3) =1660a(4) =1780a(5) =3620a(6) =4460a(7) =4660a(8) =6260a(9) =6340a(10) =6980a(11) =7580a(12) =11140a(13) =13180a(14) =13460a(15) =14020a(16) =14540a(17) =15380a(18) =16220a(19) =18220a(20) =19060a(21) =20180a(22) =21940a(23) =22180a(24) =23260a(25) =26420a(26) =28780a(27) =29620a(28) =30980a(29) =31660