This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A066233 #27 Dec 04 2024 23:04:51
%S A066233 4,5,8,11,19,20,25,28,29,37,43,50,64,74,82,89,95,97,98,104,113,116,
%T A066233 124,139,152,161,164,170,196,203,206,208,214,215,217,221,235,266,269,
%U A066233 280,287,289,296,301,304,311,325,337,344,359,367,370,388,391,407,418,422
%N A066233 Numbers k such that the sum of digits of k^k is a prime.
%H A066233 Harry J. Smith, <a href="/A066233/b066233.txt">Table of n, a(n) for n = 1..1000</a>
%o A066233 (PARI) isok(k) = {isprime(sumdigits(k^k))} \\ _Harry J. Smith_, Feb 07 2010
%Y A066233 Cf. A000040, A000312, A007953, A066588.
%K A066233 base,nonn
%O A066233 1,1
%A A066233 _Jason Earls_, Dec 19 2001