Numbers k such that (35*10^k - 377)/9 is prime.

Terms

a(0) =2a(1) =3a(2) =6a(3) =24a(4) =33a(5) =86a(6) =335a(7) =711a(8) =1103a(9) =1169a(10) =1181a(11) =2163a(12) =3026a(13) =7940a(14) =8174a(15) =9365a(16) =10127a(17) =13466a(18) =40130a(19) =70130a(20) =174704a(21) =198294