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 A351432 #32 Mar 22 2025 08:41:14 %S A351432 2,4,2,3,2,6,6,6,2,8,4,9,7,6,3,2,6,9,6,8,9,3,2,9,4,4,9,5,1,9,7,1,2,6, %T A351432 8,5,8,2,2,5,5,8,8,2,3,3,3,5,8,5,1,3,1,3,1,4,2,5,9,4,9,6,7,2,7,6,4,6, %U A351432 8,0,0,0,9,6,9,0,2,0,0,4,0,6,4,3,6,1,5,1,2,8,1,5,8,3,2,2,7,1,9,0,9,5,0,1,0,9 %N A351432 Decimal expansion of sqrt(3)/2 + Pi*tanh(Pi*sqrt(3)/2)/2. %C A351432 Imaginary part of psi(-1/2 + i*sqrt(3)/2) where psi is the digamma function. %F A351432 Equals sqrt(3)*(1 - gamma/3 - Re(psi(-1/2 + i*sqrt(3)/2))/3 + A339606). %e A351432 2.423266628497632696893294495... %t A351432 RealDigits[N[Sqrt[3]/2 + 1/2 Pi Tanh[Sqrt[3] Pi/2], 105]][[1]] %o A351432 (PARI) imag(psi(-1/2+I*sqrt(3)/2)) \\ _Michel Marcus_, Feb 11 2022 %Y A351432 Cf. A024006, A100554, A113319, A256919, A259171, A338815, A339135, A339529, A339530, A339604, A339605, A339606, A347292. %K A351432 cons,nonn %O A351432 1,1 %A A351432 _Artur Jasinski_, Feb 11 2022 %E A351432 Last two digits corrected by _Georg Fischer_, May 15 2024