Divisible only by primes congruent to 2 mod 7.

Terms

a(0) =1a(1) =2a(2) =4a(3) =8a(4) =16a(5) =23a(6) =32a(7) =37a(8) =46a(9) =64a(10) =74a(11) =79a(12) =92a(13) =107a(14) =128a(15) =148a(16) =149a(17) =158a(18) =163a(19) =184a(20) =191a(21) =214a(22) =233a(23) =256a(24) =296a(25) =298a(26) =316a(27) =317a(28) =326a(29) =331