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 A083633 #18 Feb 16 2025 08:32:49 %S A083633 162248,283693,322347,399579,399580,401865,427363,452071,452072, %T A083633 518222,788763,1006927,1006928,1039540,1059121,1109342,1143800, %U A083633 1269116,1543244,1571225,1589715,1764582,1846087,2008354,2264927,2309218,2309219 %N A083633 Starting positions of strings of five '7's in the decimal expansion of Pi. %H A083633 Dave Andersen, <a href="http://www.angio.net/pi/piquery">Pi-Search Page</a> %H A083633 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/PiDigits.html">Pi Digits.</a> %H A083633 <a href="/index/Ph#Pi314">Index entries for sequences related to the number Pi</a> %Y A083633 Cf. A083632 (four '7's), A083634 (six '7's), A049517 (at least 5 consecutive equal digits), A049521 (exactly 5 consecutive equal digits). %K A083633 base,nonn %O A083633 1,1 %A A083633 _Rick L. Shepherd_, May 04 2003