Numbers k such that 8*10^k + 87 is prime.

Terms

a(0) =1a(1) =2a(2) =3a(3) =6a(4) =7a(5) =8a(6) =9a(7) =21a(8) =41a(9) =51a(10) =63a(11) =67a(12) =85a(13) =174a(14) =272a(15) =297a(16) =533a(17) =697a(18) =1326a(19) =1344a(20) =10668a(21) =10814a(22) =26252a(23) =51721a(24) =80342a(25) =123657a(26) =166227a(27) =171296