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A139342
Decimal expansion of e^(-(1+sqrt(5))/2).
12
1, 9, 8, 2, 8, 8, 1, 5, 2, 8, 6, 2, 2, 0, 6, 2, 3, 2, 2, 6, 7, 8, 8, 8, 9, 5, 6, 6, 0, 4, 8, 6, 4, 6, 7, 0, 8, 4, 2, 0, 8, 4, 8, 9, 2, 5, 0, 1, 2, 9, 7, 1, 6, 5, 2, 7, 4, 2, 6, 1, 9, 3, 1, 8, 0, 2, 6, 4, 2, 4, 6, 0, 4, 1, 7, 1, 5, 0, 7, 9, 1, 4, 1, 9, 6, 1, 8, 1, 4, 5, 3, 1, 6, 6, 5, 3, 4, 4, 6, 2, 6, 8, 4, 8
OFFSET
0,2
COMMENTS
By the Lindemann-Weierstrass theorem, this constant is transcendental. - Charles R Greathouse IV, May 13 2019
FORMULA
Equals exp(-A001622).
Equals 1/A139341. - Amiram Eldar, Feb 08 2022
EXAMPLE
0.19828815286220623226788895660486467084208489250129...
MAPLE
evalf(exp(1)^(-(1+sqrt(5))/2), 100); # Wesley Ivan Hurt, Feb 09 2017
MATHEMATICA
RealDigits[E^-GoldenRatio, 10, 120][[1]] (* Harvey P. Dale, Dec 30 2020 *)
PROG
(PARI) exp(-(sqrt(5)+1)/2) \\ Charles R Greathouse IV, May 13 2019
KEYWORD
nonn,cons
AUTHOR
Mohammad K. Azarian, Apr 14 2008
EXTENSIONS
Leading zero removed by R. J. Mathar, Feb 05 2009
STATUS
approved