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A224085 Denominators of hypergeometric Cauchy numbers c_(2,n). 1
1, 3, 9, 45, 135, 567, 2835, 1215, 3645, 66825, 280665, 995085, 710775, 45927, 98415, 58556925, 175670775, 589013775, 10798585875, 1705039875, 7161167475, 10695250125, 417114754875, 54406272375, 272031361875, 228506343975, 52732233225, 9345323554875 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..300

Takao Komatsu, Hypergeometric Cauchy numbers, Int. J. Number Theory 9 (2013), 545-560.

MATHEMATICA

With[{nn = 30, hh = 2}, Denominator[CoefficientList[Series[1/Hypergeometric2F1[1, hh, hh + 1, -x], {x, 0, nn}], x] Range[0, nn]!]]

CROSSREFS

Cf. A006233.

Sequence in context: A222662 A209977 A001902 * A192891 A068100 A327648

Adjacent sequences:  A224082 A224083 A224084 * A224086 A224087 A224088

KEYWORD

nonn,frac

AUTHOR

Takao Komatsu, Mar 30 2013

STATUS

approved

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Last modified November 29 09:18 EST 2021. Contains 349416 sequences. (Running on oeis4.)