Numbers k such that A034387(k) and A101203(k) are both prime.

Terms

a(0) =4a(1) =7a(2) =8a(3) =15a(4) =44a(5) =311a(6) =503a(7) =507a(8) =744a(9) =843a(10) =851a(11) =955a(12) =1164a(13) =1256a(14) =1287a(15) =1307a(16) =1312a(17) =2163a(18) =2171a(19) =2244a(20) =2247a(21) =2368a(22) =2412a(23) =3143a(24) =3160a(25) =3872a(26) =3875a(27) =3952a(28) =4584a(29) =5088