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

 

Logo

Invitation: celebrating 50 years of OEIS, 250000 sequences, and Sloane's 75th, there will be a conference at DIMACS, Rutgers, Oct 9-10 2014.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A063536 [cotan(n)^3]. 1
0, -1, -346, 0, -1, -41, 1, -1, -11, 3, -1, -4, 10, 0, -2, 36, 0, -1, 287, 0, -1, 1441871, 0, -1, -421, 0, -1, -45, 1, -1, -12, 3, -1, -5, 9, 0, -2, 33, 0, -1, 241, 0, -1, 180191, 0, -1, -518, 0, -1, -50, 1, -1, -13, 3, -1, -5, 8, 0, -2, 30, 0, -1, 204, 0, -1, 53369, 0, -1, -649, 0, -1, -56, 1, -1, -14, 3, -1, -5, 8, 0, -2, 27, 0, -1 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Harry J. Smith, Table of n, a(n) for n=1,...,1000

PROG

(PARI) j=[]; for(n=1, 100, j=concat(j, floor(cotan(n)^3))); j

(PARI) { default(realprecision, 50); for (n=1, 1000, write("b063536.txt", n, " ", floor(cotan(n)^3)) ) } [From Harry J. Smith, Aug 25 2009]

CROSSREFS

Sequence in context: A138043 A048904 A139266 * A045102 A225934 A059074

Adjacent sequences:  A063533 A063534 A063535 * A063537 A063538 A063539

KEYWORD

sign

AUTHOR

Jason Earls (zevi_35711(AT)yahoo.com), Aug 10 2001

STATUS

approved

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

Content is available under The OEIS End-User License Agreement .

Last modified July 25 21:57 EDT 2014. Contains 244919 sequences.