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 A154841 #13 Jun 02 2025 01:18:31 %S A154841 8,8,4,7,3,6,7,4,3,9,9,9,7,7,7,4,6,6,0,3,4,9,0,6,6,6,1,9,3,7,4,6,2,0, %T A154841 7,8,5,8,5,3,7,6,8,4,7,3,9,9,1,2,7,1,3,9,1,6,0,9,1,7,5,1,4,6,2,7,8,3, %U A154841 4,4,8,8,1,1,4,8,7,4,7,5,9,2,1,8,9,6,3,5,6,4,3,1,0,6,0,2,3,7,1,7,1,0,1,3,7 %N A154841 Decimal expansion of e^(Pi*sqrt(43)). %C A154841 A real number that is very close to the integer 884736744 = 960^3 + 744. %D A154841 John H. Conway and Richard K. Guy, The Book of Numbers, New York: Springer-Verlag, 1996. See pp. 225-226. %e A154841 884736743.999777466034906661937462078585376847399127139160917514627834... %t A154841 RealDigits[E^(Pi Sqrt[43]), 10, 110][[1]] (* _Bruno Berselli_, Mar 05 2015 *) %o A154841 (PARI) exp(sqrt(43)*Pi) \\ _Charles R Greathouse IV_, Dec 06 2016 %K A154841 nonn,cons %O A154841 9,1 %A A154841 Kousaka Hideaki (kousaka(AT)d6.dion.ne.jp), Jan 16 2009 %E A154841 More digits from _R. J. Mathar_, Jan 21 2009