Numbers k such that (16*10^k + 53)/3 is prime.

Terms

a(0) =0a(1) =1a(2) =3a(3) =8a(4) =12a(5) =14a(6) =25a(7) =27a(8) =33a(9) =60a(10) =87a(11) =129a(12) =171a(13) =339a(14) =429a(15) =1065a(16) =1080a(17) =1462a(18) =2565a(19) =3568a(20) =3577a(21) =5139a(22) =5763a(23) =12235a(24) =29748a(25) =94822a(26) =194536