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 A104817 #5 Oct 05 2013 08:46:41 %S A104817 13,30,39,43,45,81,90,100,108,111,114,124,131,134,144,152,154,155,160, %T A104817 163,169,187,192,197,198,199,200,203,214,220,225,229,255,260,270,286, %U A104817 312,318,330,337,340,359,364,391,412,418,432,433,436,439 %N A104817 Positions of 1 in partition of decimal expansion of Pi A104807. %Y A104817 Cf. A104807-A104818. %K A104817 nonn,base %O A104817 1,1 %A A104817 _Zak Seidov_, Mar 27 2005