login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A292827 Decimal expansion of Product_{k>=1} (1 + exp(-Pi*(2*k-1)/2)). 5
1, 2, 1, 9, 2, 2, 4, 8, 0, 1, 9, 9, 8, 7, 7, 3, 5, 7, 7, 1, 7, 9, 4, 2, 7, 4, 8, 4, 3, 4, 9, 0, 2, 3, 2, 3, 5, 6, 3, 1, 8, 4, 4, 4, 9, 9, 7, 0, 0, 9, 1, 6, 8, 3, 8, 2, 7, 9, 9, 5, 2, 4, 8, 1, 6, 3, 0, 7, 8, 2, 2, 9, 7, 9, 9, 3, 8, 0, 2, 8, 4, 6, 2, 4, 9, 2, 4, 2, 8, 7, 7, 2, 8, 3, 1, 1, 6, 7, 4, 5, 0, 8, 3, 8, 7 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..105.

FORMULA

Equals 2^(1/16) / (exp(Pi/48) * (sqrt(2)-1)^(1/4)).

Equals A292819 / A292820.

EXAMPLE

1.219224801998773577179427484349023235631844499700916838279952481630782...

MATHEMATICA

RealDigits[2^(1/16) / (E^(Pi/48) * (Sqrt[2]-1)^(1/4)), 10, 120][[1]]

CROSSREFS

Cf. A259147, A292819, A292823.

Cf. A292828, A292829.

Sequence in context: A024578 A030327 A095890 * A243999 A223141 A021460

Adjacent sequences:  A292824 A292825 A292826 * A292828 A292829 A292830

KEYWORD

nonn,cons

AUTHOR

Vaclav Kotesovec, Sep 24 2017

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified November 19 22:34 EST 2019. Contains 329323 sequences. (Running on oeis4.)