Numbers k such that (25*10^k - 37) / 3 is prime.

Terms

a(0) =1a(1) =2a(2) =7a(3) =17a(4) =24a(5) =32a(6) =66a(7) =67a(8) =74a(9) =92a(10) =104a(11) =117a(12) =188a(13) =260a(14) =279a(15) =336a(16) =348a(17) =369a(18) =547a(19) =619a(20) =860a(21) =2735a(22) =7932a(23) =11874a(24) =14867a(25) =40153a(26) =171849a(27) =176715