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 A164106 #9 Feb 16 2025 08:33:11 %S A164106 4,7,2,4,7,6,5,9,7,0,3,3,1,4,0,1,1,6,9,5,9,6,3,9,0,8,6,7,3,6,7,8,3,1, %T A164106 6,4,9,8,6,2,9,0,1,1,1,4,8,0,1,5,4,0,2,2,0,0,6,0,1,2,0,0,9,2,0,0,8,5, %U A164106 9,3,5,1,1,2,3,2,8,6,9,4,9,1,4,3,8,7,3,5,3,9,5,4,4,4,2,4,9,3,2,4,6,5,2,2,0 %N A164106 Decimal expansion of 16*Pi^3/105. %C A164106 Volume of the 7-dimensional unit sphere. %H A164106 G. C. Greubel, <a href="/A164106/b164106.txt">Table of n, a(n) for n = 1..10000</a> %H A164106 Eric Weisstein, <a href="https://mathworld.wolfram.com/Hypersphere.html">Hypersphere</a>, Wolfram Mathworld. %H A164106 Wikipedia, <a href="http://en.wikipedia.org/wiki/Hypersphere">Hypersphere</a> %H A164106 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a> %F A164106 Equals 16*A091925/105 = A164107/7 . %e A164106 Equals 4.72476597033140116959639086736783164986290111... %t A164106 RealDigits[16*Pi^3/105, 10, 100][[1]] (* _G. C. Greubel_, Apr 09 2017 *) %o A164106 (PARI) 16*Pi^3/105 \\ _G. C. Greubel_, Apr 09 2017 %Y A164106 Cf. A000796, A019699, A102753, A164103, A164105, A164108. %K A164106 cons,nonn %O A164106 1,1 %A A164106 _R. J. Mathar_, Aug 10 2009