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A145638 Denominator the polynomial A_l(x) = sum_{d=1..l-1} x^(l-d)/d for index l=2n+1 evaluated at x=14. 1
1, 6, 15, 60, 45, 990, 6435, 10296, 43758, 4157010, 2078505, 191222460, 239028075, 1434168450, 20795442525, 10314539492400, 2578634873100, 1289317436550, 23852372576175, 95409490304700, 977947275623175, 84103465703593050 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

For numerators see A145635. For general properties of A_l(x) see A145609.

m^(2n)Log[m/(m-1)]-A[1,2n+1](m)

LINKS

Table of n, a(n) for n=1..22.

MATHEMATICA

m = 14; aa = {}; Do[k = 0; Do[k = k + m^(2 r + 1 - d)/d, {d, 1, 2 r}]; AppendTo[aa, Denominator[k]], {r, 1, 30}]; aa (*Artur Jasinski*)

CROSSREFS

Cf. A145609 - A145640.

Sequence in context: A270675 A271002 A271018 * A067665 A012595 A012294

Adjacent sequences:  A145635 A145636 A145637 * A145639 A145640 A145641

KEYWORD

frac,nonn

AUTHOR

Artur Jasinski, Oct 16 2008

EXTENSIONS

Edited by R. J. Mathar, Aug 21 2009

STATUS

approved

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Last modified May 28 21:37 EDT 2020. Contains 334690 sequences. (Running on oeis4.)