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 A048293 #15 Feb 16 2025 08:32:39 %S A048293 0,1,3,5,6,7,8,9,10,11,13,14,15,16,17,18,19,20,22,23,24,26,28,29,30, %T A048293 31,32,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,55, %U A048293 56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,78,81 %N A048293 Positions of 1-digit terms in the continued fraction for Pi (3 is at position 0). %H A048293 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/PiContinuedFraction.html">Pi Continued Fraction</a> %Y A048293 Cf. A001203, A048292. %K A048293 nonn,base %O A048293 1,3 %A A048293 _Eric W. Weisstein_