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Search: id:A012388
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A012388 arcsin(tan(x)*tan(x))=2/2!*x^2+16/4!*x^4+392/6!*x^6+21376/8!*x^8... +0
2
2, 16, 392, 21376, 2117792, 333550336, 76433892992, 23981418704896, 9862199971860992, 5144452992189485056, 3317894031273853601792, 2591931617534673513250816, 2411532576645611695219515392 (list; graph; listen)
OFFSET

0,1
CROSSREFS

Sequence in context: A002474 A012390 A009613 this_sequence A012752 A130276 A027871

Adjacent sequences: A012385 A012386 A012387 this_sequence A012389 A012390 A012391

KEYWORD

nonn

AUTHOR

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

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Last modified December 1 19:22 EST 2009. Contains 167811 sequences.

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