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 A152651 #8 Apr 29 2019 08:05:39 %S A152651 1,1,3,3,4,7,8,9,1,5,1,3,2,8,1,3,6,6,0,7,9,7,0,1,1,0,1,7,8,8,5,9,7,6, %T A152651 9,3,2,0,8,9,0,9,1,2,9,1,8,4,5,6,0,4,2,2,7,2,2,6,7,5,5,7,5,6,6,5,6,6, %U A152651 9,5,7,3,5,2,1,2,2,4,0,2,4,5,9,7,7,7,4,4,9,4,7,1,4,9,6,5,0,4,0,1,7,6,6,7,6 %N A152651 Decimal expansion of 3*Zeta(5) - Zeta(3)*Pi^2/6. %C A152651 A division by 2 is missing in Mezo's penultimate formula on page 4. %H A152651 David Borwein and J. M. Borwein, <a href="http://dx.doi.org/10.1090/S0002-9939-1995-1231029-X">On an intriguing integral and some series related to zeta(4)</a>, Proc. Am. Math. Soc. 123 (1995) 1191-1198. %H A152651 Istvan Mezo, <a href="http://arxiv.org/abs/0811.0042">Summation of Hyperharmonic Numbers</a>, arXiv:0811.0042 [math.CO], 2008. %F A152651 Equals Sum_(j >= 1) H(j)/j^4 = where H(j) = A001008(j)/A002805(j). %F A152651 Equals 3*A013663 - A002117*A013661. %e A152651 Equals 1.1334789151328136607970110178859769320890912918456042272... %t A152651 RealDigits[3*Zeta[5]-Zeta[3]*Pi^2/6,10,120][[1]] (* _Harvey P. Dale_, Apr 29 2019 *) %o A152651 (PARI) 3*zeta(5) - zeta(3)*Pi^2/6 \\ _Michel Marcus_, Jul 07 2015 %K A152651 cons,easy,nonn %O A152651 1,3 %A A152651 _R. J. Mathar_, Dec 10 2008