A145640 - cp's OEIS frontend

A145640 Denominator the polynomial A_l(x) = sum_{d=1..l-1} x^(l-d)/d for index l=2n+1 evaluated at x=16.

n	a(n)
1	1
2	3
3	5
4	35
5	315
6	3465
7	45045
8	45045
9	255255
10	969969
11	29393
12	2028117
13	50702925
14	456326325
15	13233463425
16	820474732350
17	4512611027925
18	4512611027925
19	166966608033225
20	12843585233325
21	526586994566325
22	22643240766351975

[1, 3, 5, 35, 315, 3465, 45045, 45045, 255255, 969969, 29393, 2028117, 50702925, 456326325, 13233463425, 820474732350, 4512611027925, 4512611027925, 166966608033225, 12843585233325, 526586994566325, 22643240766351975]

cp's OEIS Frontend

A145640 Denominator the polynomial A_l(x) = sum_{d=1..l-1} x^(l-d)/d for index l=2n+1 evaluated at x=16.

Table of values

List of values