A351600 - cp's OEIS frontend

A351600 a(n) = n^2 * Sum_{d^2|n} 1 / d^2.

n	a(n)
1	1
2	4
3	9
4	20
5	25
6	36
7	49
8	80
9	90
10	100
11	121
12	180
13	169
14	196
15	225
16	336
17	289
18	360
19	361
20	500
21	441
22	484
23	529
24	720
25	650
26	676
27	810
28	980
29	841
30	900
31	961
32	1344
33	1089
34	1156
35	1225
36	1800
37	1369
38	1444
39	1521
40	2000
41	1681
42	1764
43	1849
44	2420
45	2250
46	2116
47	2209
48	3024
49	2450
50	2600
51	2601
52	3380
53	2809

[1, 4, 9, 20, 25, 36, 49, 80, 90, 100, 121, 180, 169, 196, 225, 336, 289, 360, 361, 500, 441, 484, 529, 720, 650, 676, 810, 980, 841, 900, 961, 1344, 1089, 1156, 1225, 1800, 1369, 1444, 1521, 2000, 1681, 1764, 1849, 2420, 2250, 2116, 2209, 3024, 2450, 2600, 2601, 3380, 2809]

cp's OEIS Frontend

A351600 a(n) = n^2 * Sum_{d^2|n} 1 / d^2.

Table of values

List of values