OFFSET
0,1
LINKS
Salma Ettahri, Olivier Ramaré, and Léon Surel, Fast multi-precision computation of some Euler products, arXiv:1908.06808 [math.NT], 2019.
Étienne Fouvry, Claude Levesque, and Michel Waldschmidt, Representation of integers by cyclotomic binary forms, arXiv:1712.09019 [math.NT], 2017 and Acta Arithmetica, online 15 March 2018.
FORMULA
EXAMPLE
0.9188330999291487244256631507533988473271937061440690243133487417135896...
MATHEMATICA
(* Using Vaclav Kotesovec's function Z from A301430. *)
$MaxExtraPrecision = 1000; digits = 90;
digitize[c_] := RealDigits[Chop[N[c, digits]], 10, digits - 1][[1]];
digitize[(Z[12, 5, 2] Z[12, 7, 2] Z[12, 11, 2])^(-1)]
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Peter Luschny, Jan 18 2021
STATUS
approved