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A269991 Decimal expansion of Sum_{n >= 1} 2^(1-n)/Fibonacci(n). 1
1, 6, 8, 4, 8, 1, 3, 1, 4, 4, 4, 8, 9, 5, 7, 6, 0, 9, 6, 3, 1, 6, 5, 5, 4, 3, 3, 7, 3, 8, 0, 0, 7, 8, 2, 3, 0, 2, 3, 7, 0, 6, 3, 8, 8, 2, 4, 5, 7, 0, 8, 6, 8, 2, 0, 9, 4, 3, 1, 7, 6, 1, 8, 8, 5, 9, 5, 0, 5, 6, 0, 0, 2, 8, 0, 4, 9, 4, 5, 4, 9, 8, 9, 1, 0, 8 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..86.

EXAMPLE

1.684813144489576096316554337380078230...

MATHEMATICA

x = N[Sum[2^(1 - n)/Fibonacci[n], {n, 1, 500}], 100]

RealDigits[x][[1]]

CROSSREFS

Cf. A000045, A269992.

Sequence in context: A247038 A195492 A269802 * A171784 A200133 A021150

Adjacent sequences:  A269988 A269989 A269990 * A269992 A269993 A269994

KEYWORD

nonn,cons,easy

AUTHOR

Clark Kimberling, Mar 12 2016

STATUS

approved

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Last modified January 21 21:30 EST 2020. Contains 331128 sequences. (Running on oeis4.)