A145618 Denominator of the polynomial A_l(x) = sum_{d=1..l-1} x^(l-d)/d for index l=2n+1 evaluated at x=5.

2, 12, 12, 168, 504, 5544, 72072, 144144, 2450448, 46558512, 4232592, 97349616, 97349616, 41721264, 1209916656, 75014832672, 825163159392, 5776142115744, 213717258282528, 213717258282528, 1251772512797664, 53826218050299552

Offset

1,1

Comments

For numerators see A145617. For general properties of A_l(x) see A145609.

Links

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

Crossrefs

Cf. A145609 - A145640.

Sequence in context: A198532 A198477 A075178 * A306693 A169900 A140355

Adjacent sequences: A145615 A145616 A145617 * A145619 A145620 A145621

Keyword

frac,nonn

Author

Artur Jasinski, Oct 14 2008

Extensions

Edited by R. J. Mathar, Aug 21 2009

Status

approved