The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A026301 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A026301

Expansion of g.f. sqrt(V(x)), where V(x) = Sum_{n >= 0} A065409(n)*x^n.
(history; published version)

#17 by Vaclav Kotesovec at Thu Sep 26 02:40:25 EDT 2019

STATUS

editing

approved

#16 by Vaclav Kotesovec at Thu Sep 26 02:40:15 EDT 2019

FORMULA

a(n) ~ 2^(4*n + 1/2) / (Pi * sqrt(n)). - Vaclav Kotesovec, Sep 26 2019

#15 by Vaclav Kotesovec at Thu Sep 26 02:28:33 EDT 2019

MATHEMATICA

CoefficientList[Series[Sqrt[HypergeometricPFQ[{-1/2, 1/2}, {1}, 32*x - 256*x^2]/(1 - 16*x)], {x, 0, 20}], x] (* Vaclav Kotesovec, Sep 26 2019 *)

STATUS

reviewed

editing

#14 by Joerg Arndt at Thu Sep 26 02:18:02 EDT 2019

STATUS

proposed

reviewed

#13 by Joerg Arndt at Thu Sep 26 02:17:59 EDT 2019

STATUS

editing

proposed

#12 by Joerg Arndt at Thu Sep 26 02:17:57 EDT 2019

NAME

Expansion of g.f.: sqrt(V(x)), where V(x) = Sum_{n >= 0} A065409(n)*x^n.

STATUS

proposed

editing

#11 by Sean A. Irvine at Wed Sep 25 00:11:43 EDT 2019

STATUS

editing

proposed

#10 by Sean A. Irvine at Wed Sep 25 00:11:32 EDT 2019

NAME

GExpansion of g.f.: sqrt(V(x)), where V(x) = Sum_{n >= 0} A065409(n)*x^n.

DATA

1, 4, 64, 960, 14112, 206976, 3051520, 45340672, 679088128, 10244538368, 155497791488, 2372333207552, 36346971717632, 558853784207360, 8618409948348416, 133250263847796736, 2064775104923041792, 32056922218818961408, 498560128589437599744

EXTENSIONS

More terms from Sean A. Irvine, Sep 25 2019

STATUS

approved

editing

#9 by Joerg Arndt at Sat Feb 15 11:18:40 EST 2014

STATUS

proposed

approved

#8 by Jon E. Schoenfield at Sat Feb 15 11:07:50 EST 2014

STATUS

editing

proposed