A012783 - OEIS

The OEIS is supported by the many generous donors to the OEIS Foundation.

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give

A012783

sin(sec(x)*arcsin(x))=x+3/3!*x^3+5/5!*x^5-889/7!*x^7-82167/9!*x^9...

1, 3, 5, -889, -82167, -7869301, -906141171, -128450716913, -22562588189167, -4955964959446253, -1381444138161821675, -495014642393801914473, -227710892670360844819175, -131704509800404485504904293

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,2

LINKS

Table of n, a(n) for n=0..13.

CROSSREFS

Sequence in context: A136134 A119497 A298094 * A062655 A364547 A368462

Adjacent sequences: A012780 A012781 A012782 * A012784 A012785 A012786

KEYWORD

sign

AUTHOR

Patrick Demichel (patrick.demichel(AT)hp.com)

STATUS

approved