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.

A358186 Decimal expansion of the positive real root r of 3*x^4 - 1.

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%I A358186 #16 Jul 27 2024 23:54:11
%S A358186 7,5,9,8,3,5,6,8,5,6,5,1,5,9,2,5,4,7,3,3,1,1,8,7,7,5,0,6,5,4,5,4,5,3,
%T A358186 3,5,3,9,6,7,7,3,4,4,8,8,8,7,3,1,0,3,1,8,6,1,1,2,8,8,6,5,3,7,0,0,3,2,
%U A358186 2,2,3,3,1,7,1,0
%N A358186 Decimal expansion of the positive real root r of 3*x^4 - 1.
%C A358186 The other roots are -r and the complex conjugate pair r*i and -r*i.
%F A358186 r = (1/3)^(1/4) = (1/3)*27^(1/4).
%F A358186 Equals A011022/3.
%F A358186 Equals exp(-arctanh(1/2)/2). - _Amiram Eldar_, Jul 06 2023
%F A358186 Equals 1/A011002. - _Jason Yuen_, Jul 27 2024
%e A358186 0.75983568565159254733118775065454533539677344888731031861128865370032223317...
%t A358186 RealDigits[Surd[1/3, 4], 10, 120][[1]] (* _Amiram Eldar_, Dec 07 2022 *)
%Y A358186 Cf. A011002, A011022.
%K A358186 nonn,cons,easy
%O A358186 0,1
%A A358186 _Wolfdieter Lang_, Dec 04 2022