Primes with 28 as smallest positive primitive root.

Terms

a(0) =133321a(1) =140351a(2) =151009a(3) =160081a(4) =191161a(5) =224041a(6) =277747a(7) =282481a(8) =298681a(9) =344161a(10) =485161a(11) =509521a(12) =570001a(13) =669241a(14) =675601a(15) =700129a(16) =784351a(17) =859751a(18) =874681a(19) =1014121a(20) =1068721a(21) =1222831a(22) =1613041a(23) =1618387a(24) =1794841a(25) =1795561a(26) =1868231