Numbers k for which 10k + 1, 10k + 3, 10k + 7, 10k + 9 and 10k + 13 are primes.

Terms

a(0) =1a(1) =10a(2) =148a(3) =1606a(4) =1942a(5) =2101a(6) =2227a(7) =4378a(8) =5533a(9) =14416a(10) =16570a(11) =16684a(12) =19573a(13) =20182a(14) =22534a(15) =24760a(16) =26881a(17) =32614a(18) =34798a(19) =36121a(20) =39775a(21) =46516a(22) =51880a(23) =53644a(24) =63346a(25) =63379a(26) =66109a(27) =76819a(28) =79579a(29) =82972