A046871 - cp's OEIS frontend

A046871 Numbers k such that sigma_2(k) divides sigma_4(k).

n	a(n)
1	1
2	4
3	9
4	16
5	20
6	25
7	36
8	48
9	49
10	64
11	81
12	100
13	121
14	144
15	162
16	169
17	180
18	196
19	225
20	245
21	256
22	289
23	324
24	361
25	400
26	432
27	441
28	484
29	500
30	529
31	576
32	605
33	625
34	648
35	676
36	729
37	784
38	841
39	900
40	931
41	961
42	980
43	1024
44	1089
45	1156
46	1200
47	1225
48	1280
49	1296
50	1369
51	1444
52	1521

[1, 4, 9, 16, 20, 25, 36, 48, 49, 64, 81, 100, 121, 144, 162, 169, 180, 196, 225, 245, 256, 289, 324, 361, 400, 432, 441, 484, 500, 529, 576, 605, 625, 648, 676, 729, 784, 841, 900, 931, 961, 980, 1024, 1089, 1156, 1200, 1225, 1280, 1296, 1369, 1444, 1521]

cp's OEIS Frontend

A046871 Numbers k such that sigma_2(k) divides sigma_4(k).

Table of values

List of values