Numbers k such that (32*10^k - 77)/9 is prime.

Terms

a(0) =2a(1) =3a(2) =8a(3) =12a(4) =15a(5) =75a(6) =92a(7) =123a(8) =126a(9) =267a(10) =272a(11) =525a(12) =561a(13) =1041a(14) =1947a(15) =2571a(16) =11667a(17) =13656a(18) =15981a(19) =29852a(20) =35256a(21) =105530a(22) =122733a(23) =125751