Palindromic primes in base 18, but written here in base 10.
2, 3, 5, 7, 11, 13, 17, 19, 379, 397, 433, 487, 523, 541, 577, 613, 631, 1697, 1733, 1787, 1823, 1877, 1913, 1931, 2293, 2311, 2347, 2383, 2437, 2473, 3593, 3701, 3719, 3863, 3881, 4243, 4261, 4297, 4423, 4441, 4513, 5651, 5669, 5741, 5813, 106273, 106921
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T. D. Noe, Plot of 1000 terms
T. D. Noe, Table of 1000 terms
Eric W. Weisstein, MathWorld: Palindromic Prime
(Mma) nn = 18; t = {}; p = 1; While[Length[t] < 100, p = NextPrime[p]; If[IntegerDigits[p, nn] == Reverse[IntegerDigits[p, nn]], AppendTo[t, p]]]
Cf. A230820 (lists many other related sequences), S000394-S000403.
nonn,base
T. D. Noe, Dec 09 2014