Numbers k such that (184*10^k - 1)/3 is prime.

Terms

a(0) =0a(1) =1a(2) =2a(3) =3a(4) =21a(5) =24a(6) =25a(7) =39a(8) =42a(9) =90a(10) =192a(11) =547a(12) =3185a(13) =3363a(14) =4279a(15) =4496a(16) =4761a(17) =5022a(18) =6807a(19) =13220a(20) =13283a(21) =13519a(22) =25183a(23) =37609a(24) =84348a(25) =87473a(26) =112007a(27) =211682