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 A371858 #8 Nov 22 2024 08:31:17
%S A371858 1,0,3,4,3,7,6,0,5,5,2,6,6,7,9,6,4,8,2,9,4,5,3,0,6,4,0,6,5,1,2,4,8,8,
%T A371858 7,4,8,3,6,4,2,5,6,7,2,6,4,2,7,3,3,7,5,8,1,0,2,8,3,3,2,6,8,8,1,5,2,5,
%U A371858 9,3,1,0,0,7,4,8,6,2,5,4,8,5,5,5,2,0,7,5,8,9,3,8,1,8,2,0,0,0,5,9,6,0
%N A371858 Decimal expansion of Integral_{x=0..oo} 1 / (1 + x^7) dx.
%H A371858 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>.
%F A371858 Equals (1/7) * Pi * csc(Pi/7).
%F A371858 Equals A019674 * A121598.
%F A371858 Equals Product_{k>=2} (1 + (-1)^k/A047336(k)). - _Amiram Eldar_, Nov 22 2024
%e A371858 1.0343760552667964829453064065124887483642567...
%t A371858 RealDigits[(1/7) Pi Csc[Pi/7], 10, 102][[1]]
%Y A371858 Decimal expansion of Integral_{x=0..oo} 1 / (1 + x^k) dx: A019669 (k=2), A248897 (k=3), A093954 (k=4), A352324 (k=5), A019670 (k=6), this sequence (k=7), A352125 (k=8).
%Y A371858 Cf. A019674, A047336, A121598.
%K A371858 nonn,cons
%O A371858 1,3
%A A371858 _Ilya Gutkovskiy_, Apr 09 2024