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A013444 cos(tan(x)-arctan(x))=1-160/6!*x^6+1792/8!*x^8-484224/10!*x^10... 0
1, 0, 0, -160, 1792, -484224, 38725632, -8292976640, 1743232565248, -521161362997248, 188842450602393600, -83511992640895975424, 44545415648776825077760, -27875257165637958804439040 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,4

LINKS

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

CROSSREFS

Sequence in context: A127409 A013447 A013446 * A013448 A234650 A214354

Adjacent sequences:  A013441 A013442 A013443 * A013445 A013446 A013447

KEYWORD

sign

AUTHOR

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

STATUS

approved

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Last modified June 18 20:45 EDT 2021. Contains 345121 sequences. (Running on oeis4.)