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A219781 Decimal expansion of Sum_{n = -infinity..infinity} 5^(n/2)*((1+sqrt(5))/2)^(-n^2). 2
3, 5, 7, 6, 9, 7, 2, 7, 4, 8, 1, 3, 1, 6, 9, 4, 8, 5, 6, 5, 3, 9, 5, 1, 9, 7, 8, 4, 8, 5, 6, 3, 7, 4, 5, 3, 7, 5, 2, 8, 4, 0, 5, 3, 6, 5, 2, 3, 5, 2, 2, 2, 3, 0, 7, 7, 3, 6, 9, 7, 2, 7, 3, 7, 6, 1, 2, 6, 1, 7, 5, 8, 2, 7, 8, 1, 1, 1, 2, 7, 1, 7, 5, 7, 3, 0, 2 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Constant is associated with A135961.

LINKS

Table of n, a(n) for n=1..87.

EXAMPLE

3.5769727481316948565395...

MATHEMATICA

RealDigits[N[Sum[5^(k/2)*((1+Sqrt[5])/2)^(-k^2), {k, -Infinity, Infinity}], 131], 10, 130][[1]]

CROSSREFS

Cf. A135961, A135741.

Sequence in context: A214091 A071581 A184722 * A215107 A084393 A100005

Adjacent sequences:  A219778 A219779 A219780 * A219782 A219783 A219784

KEYWORD

nonn,cons

AUTHOR

Vaclav Kotesovec, Nov 29 2012

STATUS

approved

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Last modified April 26 04:04 EDT 2019. Contains 322469 sequences. (Running on oeis4.)