A068984 - cp's OEIS frontend

A068984 a(n) = Sum_{d|n} d*tau(d)^2.

n	a(n)
1	1
2	9
3	13
4	45
5	21
6	117
7	29
8	173
9	94
10	189
11	45
12	585
13	53
14	261
15	273
16	573
17	69
18	846
19	77
20	945
21	377
22	405
23	93
24	2249
25	246
26	477
27	526
28	1305
29	117
30	2457
31	125
32	1725
33	585
34	621
35	609
36	4230
37	149
38	693
39	689
40	3633
41	165
42	3393
43	173
44	2025
45	1974
46	837
47	189
48	7449
49	470
50	2214
51	897

[1, 9, 13, 45, 21, 117, 29, 173, 94, 189, 45, 585, 53, 261, 273, 573, 69, 846, 77, 945, 377, 405, 93, 2249, 246, 477, 526, 1305, 117, 2457, 125, 1725, 585, 621, 609, 4230, 149, 693, 689, 3633, 165, 3393, 173, 2025, 1974, 837, 189, 7449, 470, 2214, 897]

cp's OEIS Frontend

A068984 a(n) = Sum_{d|n} d*tau(d)^2.

Table of values

List of values