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 A319026 #14 Aug 29 2023 04:39:11 %S A319026 9,2,2,7,8,4,3,3,5,0,9,8,4,6,7,1,3,9,3,9,3,4,8,7,9,0,9,9,1,7,5,9,7,5, %T A319026 6,8,9,5,7,8,4,0,6,6,4,0,6,0,0,7,6,4,0,1,1,9,4,2,3,2,7,6,5,1,1,5,1,3, %U A319026 2,2,7,3,2,2,2,3,3,5,3,2,9,0,6,3 %N A319026 Decimal expansion of Psi(3). %C A319026 Psi(x) is the digamma function (logarithmic derivative of the Gamma function). %H A319026 M. Abramowitz and I. A. Stegun, eds., <a href="https://personal.math.ubc.ca/~cbm/aands/abramowitz_and_stegun.pdf">Handbook of Mathematical Functions</a>, National Bureau of Standards, Applied Math. Series 55, Tenth Printing, 1972, pp. 258-259 [alternative scanned copy]. %F A319026 Psi(3) = Psi(2) + 1/2 = 3/2 - gamma, with gamma = A001620 and Psi(2) = A153810. - _Wolfdieter Lang_, Oct 05 2018 %e A319026 0.92278433509846713939348790... %p A319026 evalf(Psi(3.0)) ; - _R. J. Mathar_, Aug 29 2023 %t A319026 RealDigits[3/2 - EulerGamma, 10, 100][[1]] (* _Amiram Eldar_, May 24 2023 *) %o A319026 (PARI) psi(3) %Y A319026 Cf. A001620, A153810. %K A319026 nonn,cons %O A319026 0,1 %A A319026 _Patrick C. Schneider_, Sep 08 2018