A145618 - cp's OEIS frontend

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.

n	a(n)
1	2
2	12
3	12
4	168
5	504
6	5544
7	72072
8	144144
9	2450448
10	46558512
11	4232592
12	97349616
13	97349616
14	41721264
15	1209916656
16	75014832672
17	825163159392
18	5776142115744
19	213717258282528
20	213717258282528
21	1251772512797664
22	53826218050299552

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

cp's OEIS Frontend

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.

Table of values

List of values