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A012995 sec(arctan(x)+arcsin(x))=1+4/2!*x^2+72/4!*x^4+3510/6!*x^6+315000/8!*x^8... 0
1, 4, 72, 3510, 315000, 45898650, 9783981900, 2881566037350, 1118460016674000, 553787154746075250, 340453667922140272500, 254502044013845436558750, 227301229608843762807435000 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..12.

CROSSREFS

Sequence in context: A013066 A013102 A224900 * A076744 A177392 A158269

Adjacent sequences:  A012992 A012993 A012994 * A012996 A012997 A012998

KEYWORD

nonn

AUTHOR

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

STATUS

approved

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Last modified November 17 10:37 EST 2019. Contains 329225 sequences. (Running on oeis4.)