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A012994 cosh(arctan(x)+arcsin(x))=1+4/2!*x^2+8/4!*x^4+310/6!*x^6+4600/8!*x^8... 0
1, 4, 8, 310, 4600, 695450, 32209900, 9441571750, 1024927826000, 439344864507250, 96071120715212500, 52160549887581638750, 20873814687864446035000, 13171711293701017616406250 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

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

CROSSREFS

Sequence in context: A074073 A090653 A065022 * A136386 A260726 A308553

Adjacent sequences:  A012991 A012992 A012993 * A012995 A012996 A012997

KEYWORD

nonn

AUTHOR

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

STATUS

approved

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Last modified October 23 03:21 EDT 2019. Contains 328335 sequences. (Running on oeis4.)