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Search: id:A013454
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A013454 cos(tan(x)-tanh(x))=1-160/6!*x^6-261120/10!*x^10+3942400/12!*x^12... +0
1
1, 0, 0, -160, 0, -261120, 3942400, -1538068480, 111522611200, -25458261360640, 5279051703910400, -1021353507684352000, 440307608869404672000, -89935097031558126632960 (list; graph; listen)
OFFSET

0,4
CROSSREFS

Sequence in context: A090948 A121800 A121804 this_sequence A013455 A013465 A013466

Adjacent sequences: A013451 A013452 A013453 this_sequence A013455 A013456 A013457

KEYWORD

sign

AUTHOR

Patrick Demichel (dml(AT)hpfrcu03.france.hp.com)

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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.

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