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 A024805 #6 Jul 23 2019 22:37:57 %S A024805 4,8,14,17,18,29,32,38,42,43,45,57,60,62,69,75,86,89,91,101,111,124, %T A024805 125,127,133,142,145,154,160,163,165,171,182,187,190,200,205,213,214, %U A024805 216,233,238,244,250,252,258,266,268,277,286,289,296,300,305,325,330,338,346,348,362,366 %N A024805 Positions of primes in A004432. %K A024805 nonn %O A024805 1,1 %A A024805 _Clark Kimberling_ %E A024805 Data corrected and extended by _Sean A. Irvine_, Jul 23 2019