Semiprimes k such that k is congruent to 3 modulo k's index in the sequence of semiprimes.

Terms

a(0) =4a(1) =9a(2) =15a(3) =111a(4) =141a(5) =237a(6) =27663a(7) =27667a(8) =3066878a(9) =3066893a(10) =3067023a(11) =3067033a(12) =3067073a(13) =3067193a(14) =3067243a(15) =3067273a(16) =3067283a(17) =3067543a(18) =3067598a(19) =3067613a(20) =3067663a(21) =3067798a(22) =3067843a(23) =3067853a(24) =3067913a(25) =3067933a(26) =3067993a(27) =348933171a(28) =348933219a(29) =348933297