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 A340778 #12 Apr 03 2025 04:09:44 %S A340778 0,2,8,9,5,7,6,5,3,6,5,9,0,6,9,9,7,2,5,2,4,4,6,0,2,2,0,7,6,8,6,4,9,6, %T A340778 6,6,3,2,5,6,8,3,7,3,5,8,8,6,3,1,4,6,5,3,4,7,6,8,4,8,3,8,0,0,4,9,2,8, %U A340778 0,4,4,8,6,2,8,8,2,8,8,4,9,4,3,8,8,0,5,8 %N A340778 Decimal expansion of (2 - e*log(2))/4. %C A340778 This constant appears in an asymptotic formula proved by Linnik in 1960 in an additive problem of Hardy-Littlewood (see Formula 1 in Dimitrov and Formula 0.3 in Linnik). %H A340778 Stoyan I. Dimitrov, <a href="https://arxiv.org/abs/2011.03967">The ternary Piatetski-Shapiro inequality with one prime of the form p = x^2 + y^2 + 1</a>, arXiv:2011.03967 [math.NT], 2020. %H A340778 Juriĭ Vladimirovič Linnik, <a href="http://mi.mathnet.ru/eng/izv3674">An asymptotic formula in an additive problem of Hardy-Littlewood</a>, Izv. Akad. Nauk SSSR Ser. Mat., 24 (1960), 629-706 (in Russian). %e A340778 0.02895765365906997252446022076864966632568373588631465... %t A340778 First[RealDigits[N[(2-E*Log[2])/4,87]]] %Y A340778 Cf. A001113, A002162, A079544, A276415, A283239. %K A340778 nonn,cons %O A340778 0,2 %A A340778 _Stefano Spezia_, Jan 21 2021