A224092 Numerators of hypergeometric Cauchy numbers c_(4,n).

1, 4, -4, 88, -3676, 13696, -2247872, 100066432, -9981213728, 350407116928, -99799662414208, 62373546298624, -162297422840897152, 12327981472543499264, -3665733855982431355904, 2212317607288301232207872, -484886817568995013610878976

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 = 4}, Numerator[CoefficientList[Series[ 1/Hypergeometric2F1[1, hh, hh + 1, -x], {x, 0, nn}], x] Range[0, nn]!]]

Crossrefs

Cf. A006232.

Sequence in context: A068376 A131592 A317868 * A217188 A092209 A068337

Adjacent sequences: A224089 A224090 A224091 * A224093 A224094 A224095

Keyword

sign,frac

Author

Takao Komatsu, Mar 30 2013

Status

approved