OFFSET
0,5
LINKS
Steven R. Finch, Errata and Addenda to Mathematical Constants, arXiv:2001.00578 [math.HO], 2020-2021, p. 62.
Gabriel Klambauer, Summation of Series, Amer. Math. Monthly, Vol. 87, No. 2 (Feb., 1980), pp. 128-130.
Wikipedia, Engel expansion
FORMULA
Equals 5 - 2*sqrt(6).
Equals Sum_{k>=1} binomial(2*k,k)/((k+1) * 12^k). - Amiram Eldar, Oct 04 2021
Engel expansion of 5 - 2*sqrt(6) = 1/10 + 1/(10*98) + 1/(10*98*9602) + ..., where [10, 98, 9602, ...] = A135927. See Klambauer, p. 130. - Peter Bala, Feb 01 2022
Equals exp(-arccosh(5)). - Amiram Eldar, Jul 06 2023
EXAMPLE
0.101020514433643803605431850588217216068105038686659743...
MATHEMATICA
RealDigits[5 - 2*Sqrt[6], 10, 104] // First
CROSSREFS
KEYWORD
AUTHOR
Jean-François Alcover, Sep 02 2014
STATUS
approved