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 A277535 #90 Feb 16 2025 08:33:37
%S A277535 9,9,9,9,9,9,8,3,7,2,9,7,8,0,4,9,9,5,1,0,5,9,7,3,1,7,3,2,8,1,6,0,9,6,
%T A277535 3,1,8,5,9,5,0,2,4,4,5,9,4,5,5,3,4,6,9,0,8,3,0,2,6,4,2,5,2,2,3,0,8,2,
%U A277535 5,3,3,4,4,6,8,5,0,3,5,2,6,1,9,3,1,1,8,8,1,7,1,0,1,0,0,0,3,1,3,7,8,3,8,7,5
%N A277535 Decimal expansion of Pi*(10^761) - floor(Pi*(10^761)).
%C A277535 An approximation to 1.
%C A277535 There are 6 consecutive 9's starting at the 762nd decimal place of Pi. This sequence of six nines is also called "Feynman point" after physicist Richard Feynman.
%H A277535 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/FeynmanPoint.html">Feynman Point</a>
%H A277535 Wikipedia, <a href="https://en.wikipedia.org/wiki/Six_nines_in_pi">Six nines in pi</a>
%H A277535 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>
%F A277535 a(n) = A000796(n+763).
%e A277535 0.9999998372978049951059731732816096318595024459455346908302642522308253...
%e A277535 a(0) = A000796(763) = 9.
%e A277535 a(1) = A000796(764) = 9.
%e A277535 a(2) = A000796(765) = 9.
%e A277535 a(3) = A000796(766) = 9.
%e A277535 a(4) = A000796(767) = 9.
%e A277535 a(5) = A000796(768) = 9.
%t A277535 With[{n = 762}, Drop[First@ RealDigits[N[Pi, n + 105]], n]] (* _Michael De Vlieger_, Oct 21 2016 *)
%t A277535 RealDigits[Pi, 10, 105, -762][[1]] (* _Robert G. Wilson v_, Oct 21 2016 *)
%o A277535 (PARI) frac(Pi*10^761) \\ _Charles R Greathouse IV_, Oct 01 2022
%Y A277535 Cf. A000796, A048940, A243955.
%K A277535 nonn,cons,less
%O A277535 0,1
%A A277535 _Bobby Jacobs_, Oct 19 2016