cp's OEIS Frontend

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.

A346907 Decimal expansion of 2 - 3 * Pi^3 / (2^6 * sqrt(2)).

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%I A346907 #19 Jul 14 2025 10:46:02
%S A346907 9,7,2,2,7,7,4,1,4,0,6,3,1,4,1,4,3,2,1,2,0,7,4,3,3,8,1,9,9,7,7,4,4,2,
%T A346907 3,2,7,8,9,8,9,9,6,8,1,4,6,3,0,0,2,5,3,4,6,6,8,9,1,5,2,4,4,8,1,4,7,4,
%U A346907 2,2,2,7,5,3,1,4,1,5,0,3,1,9,6,4,8,9,2
%N A346907 Decimal expansion of 2 - 3 * Pi^3 / (2^6 * sqrt(2)).
%D A346907 L. B. W. Jolley, Summation of Series, Dover, 1961, Eq. (326).
%H A346907 Michael I. Shamos, <a href="https://citeseerx.ist.psu.edu/pdf/ae33a269baba5e8b1038e719fb3209e8a00abec5">Shamos's catalog of the real numbers</a> (2011).
%H A346907 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>.
%F A346907 Equals 2 - 3 * Pi^3 / (2^6 * sqrt(2)) = 2-A251809.
%F A346907 Equals 1 + Sum_{k>=1} ( (-1)^k/(4*k-1)^3 - (-1)^k/(4*k+1)^3 ).
%e A346907 0.9722774140631414321207433819977442327898996814630...
%t A346907 RealDigits[2-3*Pi^3/(2^6*Sqrt[2]), 10, 120][[1]] (* _Amiram Eldar_, Jun 13 2023 *)
%Y A346907 Cf. A346908, A346849, A346850.
%K A346907 nonn,cons
%O A346907 0,1
%A A346907 _Sean A. Irvine_, Aug 06 2021