A017667 - cp's OEIS frontend

A017667 Numerator of sum of -2nd powers of divisors of n.

n	a(n)
1	1
2	5
3	10
4	21
5	26
6	25
7	50
8	85
9	91
10	13
11	122
12	35
13	170
14	125
15	52
16	341
17	290
18	455
19	362
20	273
21	500
22	305
23	530
24	425
25	651
26	425
27	820
28	75
29	842
30	13
31	962
32	1365
33	1220
34	725
35	52
36	637
37	1370
38	905
39	1700
40	221
41	1682
42	625
43	1850
44	1281
45	2366
46	1325
47	2210
48	1705
49	2451
50	651
51	2900
52	1785

[1, 5, 10, 21, 26, 25, 50, 85, 91, 13, 122, 35, 170, 125, 52, 341, 290, 455, 362, 273, 500, 305, 530, 425, 651, 425, 820, 75, 842, 13, 962, 1365, 1220, 725, 52, 637, 1370, 905, 1700, 221, 1682, 625, 1850, 1281, 2366, 1325, 2210, 1705, 2451, 651, 2900, 1785]

cp's OEIS Frontend

A017667 Numerator of sum of -2nd powers of divisors of n.

Table of values

List of values