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 A258751 #10 Nov 26 2024 13:26:17
%S A258751 2,4,2,2,6,5,5,8,3,7,8,8,3,4,7,8,1,7,1,6,6,3,3,6,8,7,0,4,5,1,0,5,3,1,
%T A258751 8,8,4,6,3,5,7,1,3,9,2,7,4,7,2,2,6,0,3,4,1,8,8,1,8,1,5,1,7,9,1,8,2,6,
%U A258751 9,3,6,8,7,7,2,4,4,4,4,3,6,0,5,1,2,4,5,2,7,1,2,0,8,1,9,1,5,5,2,4,6,5,6,9,6
%N A258751 Decimal expansion of Ls_5(Pi), the value of the 5th basic generalized log-sine integral at Pi (negated).
%H A258751 Jonathan M. Borwein, Armin Straub, <a href="https://carmamaths.org/resources/jon/logsin3.pdf">Special Values of Generalized Log-sine Integrals</a>.
%H A258751 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>.
%F A258751 -Integral_{0..Pi} log(2*sin(t/2))^4 dx = -19*Pi^5/240.
%F A258751 Also equals 4th derivative of -Pi*binomial(x, x/2) at x=0.
%e A258751 -24.22655837883478171663368704510531884635713927472260341881815179...
%t A258751 RealDigits[-19*Pi^5/240, 10, 105] // First
%o A258751 (PARI) -19*Pi^5/240 \\ _Charles R Greathouse IV_, Nov 26 2024
%Y A258751 Cf. A258749 (Ls_3(Pi)), A258750 (Ls_4(Pi)), A258752 (Ls_6(Pi)), A258753 (Ls_7(Pi)), A258754 (Ls_8(Pi)).
%K A258751 nonn,cons,easy
%O A258751 2,1
%A A258751 _Jean-François Alcover_, Jun 09 2015