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

 

Logo

Annual Appeal: Please make a donation (tax deductible in USA) to keep the OEIS running. Over 5000 articles have referenced us, often saying "we discovered this result with the help of the OEIS".

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A117021 Decimal expansion of (sine of 1 radian)^(-2)=(csc 1 radian)^2. 0
1, 4, 1, 2, 2, 8, 2, 9, 2, 7, 4, 3, 7, 3, 9, 1, 9, 1, 4, 6, 0, 9, 3, 3, 5, 0, 0, 4, 5, 4, 1, 6, 2, 4, 9, 0, 2, 3, 7, 2, 2, 9, 5, 1, 1, 4, 3, 5, 0, 8, 1, 7, 2, 0, 8, 0, 5, 3, 2, 7, 2, 6, 0, 6, 4, 9, 9, 2, 7, 9, 0, 2, 9, 7, 5, 1, 1, 2, 6, 3, 5, 4, 5, 5, 4, 8, 7, 1, 9, 1, 4, 7, 0, 4, 6, 8, 4, 7, 7, 9, 9, 6, 5, 2, 3 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

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

EXAMPLE

1.41228292743739191460933500454162490237229511435081720805327260649927902975112635455487191470468477996523963837778216770

MATHEMATICA

RealDigits[Sin[1]^-2, 10, 120][[1]] (* Harvey P. Dale, Aug 23 2013 *)

CROSSREFS

Cf. A049469; A073447.

Sequence in context: A106437 A054713 A213884 * A222213 A010473 A176041

Adjacent sequences:  A117018 A117019 A117020 * A117022 A117023 A117024

KEYWORD

cons,nonn,less

AUTHOR

Mohammad K. Azarian, Apr 15 2006

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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified December 4 23:10 EST 2016. Contains 278755 sequences.