Unique-period primes in base 6 in the order they are found.
7, 43, 37, 311, 31, 55987, 1297, 46441, 1822428931, 51828151, 1678321, 7369130657357778596659, 1950271, 2527867231, 3655688315536801, 189491931189200021056951, 3546245297457217493590449191748546458005595187661976371
1
T. D. Noe, Plot of 57 terms
T. D. Noe, Table of 57 terms
Chris K. Caldwell, Unique prime
(Mma) nn = 100; t6 = Table[c = Cyclotomic[n, 6]; c/GCD[n, c], {n, 2, nn}]; p6 = Select[t6, PrimePowerQ]; Table[FactorInteger[i][[1, 1]], {i, p6}]
Cf. A040017 (base-10 unique-period primes), A161509 (base 2), A064082.
nonn,base
T. D. Noe, May 14 2014