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 A101760 #7 Aug 02 2021 02:30:27 %S A101760 3,4,5,7,9,18,19,21,22,25,27,47,97,107,154,186,205,303,363,1385,1515, %T A101760 1546,2642,2795,2825,3193 %N A101760 Iccanobif prime indices: indices of prime numbers in A014258. %C A101760 No more terms through 10^4. %Y A101760 Cf. A000040, A001129, A014258-A014260, A101759-A101762. %K A101760 nonn,base,more %O A101760 1,1 %A A101760 _Jonathan Vos Post_ and _Ray Chandler_, Dec 15 2004