S000399


Palindromic primes in base 22, but written here in base 10.

2, 3, 5, 7, 11, 13, 17, 19, 23, 617, 661, 683, 727, 859, 881, 947, 1499, 1543, 1609, 1697, 1741, 1873, 2447, 2557, 2579, 2689, 2711, 2777, 2843, 2887, 3461, 3527, 3571, 3593, 3637, 3659, 3769, 4409, 4519, 4651, 4673, 4783, 6481, 6547, 6569, 6679, 6701

1

S000399

T. D. Noe, Plot of 1000 terms

T. D. Noe, Table of 1000 terms

Eric W. Weisstein, MathWorld: Palindromic Prime

(Mma) nn = 22; 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

© Tony D Noe 2014-2015