Numbers divisible only by primes congruent to 1 mod 7.

Terms

a(0) =1a(1) =29a(2) =43a(3) =71a(4) =113a(5) =127a(6) =197a(7) =211a(8) =239a(9) =281a(10) =337a(11) =379a(12) =421a(13) =449a(14) =463a(15) =491a(16) =547a(17) =617a(18) =631a(19) =659a(20) =673a(21) =701a(22) =743a(23) =757a(24) =827a(25) =841a(26) =883a(27) =911a(28) =953a(29) =967