id:A012023 - OEIS Search Results

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A012023

cos(sin(arctan(x)))=1-1/2!*x^2+13/4!*x^4-421/6!*x^6+25369/8!*x^8...

+0
1

1, -1, 13, -421, 25369, -2449801, 346065061, -67243537453, 17192488230961, -5593309059948049, 2255588021494237501, -1103994926592923677621, 644587811150505183179593, -442516027690815793746696601 (list; graph; listen)

	OFFSET	`0,3`
	CROSSREFS	`Sequence in context: A088919 A142484 A098890 this_sequence A081442 A100872 A012045` `Adjacent sequences: A012020 A012021 A012022 this_sequence A012024 A012025 A012026`
	KEYWORD	`sign`
	AUTHOR	`Patrick Demichel (dml(AT)hpfrcu03.france.hp.com)`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

AT&T Labs Research