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A089602 G.f.: L(x)^(1/4), where L(x) = o.g.f. for A053175. 3
1, 2, 14, 132, 1446, 17340, 220524, 2919240, 39761094, 553080044, 7818246436, 111929301688, 1618972088028, 23616939932376, 346986771074328, 5129262870441360, 76223971339368006, 1137977844577647948, 17058656523389665268, 256642078290095158360, 3873624648355421605492 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

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

FORMULA

G.f.: (2*EllipticK(8*x/(1-8*x))/((1-8*x)*Pi))^(1/4).

PROG

(PARI) Vec(1/agm(1, 1-16*x+O(x^66))^(1/4)) \\ Joerg Arndt, Aug 14 2013

CROSSREFS

Cf. A053175.

Sequence in context: A146971 A246481 A048990 * A052641 A157085 A073553

Adjacent sequences:  A089599 A089600 A089601 * A089603 A089604 A089605

KEYWORD

nonn

AUTHOR

Vladeta Jovovic, Dec 30, 2003

STATUS

approved

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Last modified October 20 04:37 EDT 2018. Contains 316378 sequences. (Running on oeis4.)