A145636 - cp's OEIS frontend

A145636 Denominator of the polynomial A_l(x) = sum_{d=1..l-1} x^(l-d)/d for index l=2n+1 evaluated at x=15.

n	a(n)
1	2
2	4
3	4
4	56
5	56
6	616
7	8008
8	16016
9	816816
10	5173168
11	5173168
12	118982864
13	118982864
14	356948592
15	3450503056
16	213931189472
17	19448289952
18	58344869856
19	719586728224
20	719586728224
21	4214722265312
22	1993563631492576
23	1993563631492576

[2, 4, 4, 56, 56, 616, 8008, 16016, 816816, 5173168, 5173168, 118982864, 118982864, 356948592, 3450503056, 213931189472, 19448289952, 58344869856, 719586728224, 719586728224, 4214722265312, 1993563631492576, 1993563631492576]

cp's OEIS Frontend

A145636 Denominator of the polynomial A_l(x) = sum_{d=1..l-1} x^(l-d)/d for index l=2n+1 evaluated at x=15.

Table of values

List of values