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 A330842 #20 Feb 10 2020 18:57:06 %S A330842 2,3,109,167,211,227,271,283,293,359,367,401,421,433,443,457,491,499, %T A330842 503,509,523,557,563,577,601,617,631,659,661,733,743,757,797,809,811, %U A330842 821,853,863,877,881,887,953,967,983,991,997,1013,1019,1039,1051,1069,1087,1093,1123,1151 %N A330842 Prime numbers p such that A332300(p) != p. %H A330842 Chai Wah Wu, <a href="/A330842/b330842.txt">Table of n, a(n) for n = 1..1000</a> %e A330842 The least prime factor of the numerator of Bernoulli(2*509) is not equal to 509, so 509 is a term. %Y A330842 Cf. A332300, A332346. %K A330842 nonn %O A330842 1,1 %A A330842 _Chai Wah Wu_, Feb 10 2020