A120286 - cp's OEIS frontend

A120286 Numerator of 1/n^2 + 2/(n-1)^2 + 3/(n-2)^2 +...+ (n-1)/2^2 + n.

n	a(n)
1	1
2	9
3	65
4	725
5	3899
6	28763
7	419017
8	864669
9	7981633
10	3586319
11	200763407
12	2649665993
13	34899471137
14	176508049513
15	356606957297
16	12234391348253
17	209672027529221
18	4012917216669239
19	15350275129353301
20	15443118015171841

[1, 9, 65, 725, 3899, 28763, 419017, 864669, 7981633, 3586319, 200763407, 2649665993, 34899471137, 176508049513, 356606957297, 12234391348253, 209672027529221, 4012917216669239, 15350275129353301, 15443118015171841]

cp's OEIS Frontend

A120286 Numerator of 1/n^2 + 2/(n-1)^2 + 3/(n-2)^2 +...+ (n-1)/2^2 + n.

Table of values

List of values