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 A157709 #7 Jul 28 2022 03:07:45 %S A157709 11,10111,101111,11110111,101111111,110111111101,101111111111, %T A157709 101101111111111,10001111111111111,11111111101111111, %U A157709 101111111111111111,1111111111111111111,1011111011111111111111,111101111111011111111111 %N A157709 Smallest prime made up of 0's and k 1's, where k = A001651(n). %C A157709 Smallest prime with digit sum A001651(n) and using only 0's and 1's. %Y A157709 Cf. A001651, A020449. %K A157709 nonn,base %O A157709 1,1 %A A157709 _Lekraj Beedassy_, Mar 04 2009 %E A157709 Extended by _Ray Chandler_, Mar 06 2009