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A166741 E.g.f.: exp(2*asin(x)) 2
1, 2, 4, 10, 32, 130, 640, 3770, 25600, 199810, 1740800, 16983850, 181043200, 2122981250, 26794393600, 367275756250, 5358878720000, 84106148181250, 1393308467200000, 24643101417106250, 457005177241600000 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

exp(2*asin(1)) is Aleksandr Gelfond's constant.

LINKS

Table of n, a(n) for n=0..20.

PROG

(PARI) for (n=0, 25, print(polcoeff(exp(2*asin(x)), n)*n!, ", "))

CROSSREFS

Cf. A039661.

Sequence in context: A121277 A009284 A105557 * A054091 A056593 A154219

Adjacent sequences:  A166738 A166739 A166740 * A166742 A166743 A166744

KEYWORD

nonn

AUTHOR

Jaume Oliver Lafont, Oct 21 2009

STATUS

approved

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Last modified May 25 12:15 EDT 2013. Contains 225647 sequences.