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 A249103 #11 Oct 01 2022 01:03:47 %S A249103 8,6,9,7,6,6,8,0,5,3,1,1,4,8,5,8,2,6,2,8,0,2,1,0,9,8,2,9,7,2,9,2,1,0, %T A249103 9,8,2,9,0,2,4,0,1,6,9,3,5,5,4,5,3,9,8,0,7,5,8,1,7,1,7,4,0,8,6,5,0,1, %U A249103 2,1,1,1,2,3,3,4,3,8,2,0,5,0,8,5,5,8,1,3,6,9,4,2,4,0 %N A249103 Decimal expansion of (Pi^2/15)^(1/3). %C A249103 In physics, ratio of the dimensionless blackbody radiation constant alpha_R to the dimensionless fine structure constant alpha. %H A249103 Stanislav Sykora, <a href="/A249103/b249103.txt">Table of n, a(n) for n = 0..2000</a> %H A249103 Ke Xiao, <a href="http://www.ejtp.com/articles/ejtpv8i25p379.pdf">Dimensionless Constants and Blackbody Radiation Laws</a>, Electronic Journal of Theoretical Physics, 8(2011), 379-388, Eq.4. %H A249103 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a> %F A249103 Equals A182448^(1/3). %e A249103 0.869766805311485826280210982972921098290240169355453980758171740... %t A249103 RealDigits[(Pi^2/15)^(1/3),10,120][[1]] (* _Vaclav Kotesovec_, Oct 22 2014 *) %o A249103 (PARI) (Pi^2/15)^(1/3) %Y A249103 Cf. A000796, A005600, A013661, A013662, A182448. %K A249103 nonn,cons,easy %O A249103 0,1 %A A249103 _Stanislav Sykora_, Oct 21 2014