A067262 - cp's OEIS frontend

A067262 Numbers k such that sigma(k+1) = 4*phi(k).

n	a(n)
1	2
2	6
3	14
4	20
5	30
6	54
7	104
8	114
9	132
10	140
11	234
12	252
13	279
14	314
15	434
16	539
17	620
18	644
19	798
20	860
21	1064
22	1080
23	1154
24	1287
25	1308
26	1500
27	1595
28	1715
29	1904
30	2232
31	2294
32	2375
33	2736
34	2772
35	2925
36	3212
37	3219
38	3684
39	3834
40	4014
41	4070
42	4344
43	4464
44	4730
45	4959
46	5075
47	5159

[2, 6, 14, 20, 30, 54, 104, 114, 132, 140, 234, 252, 279, 314, 434, 539, 620, 644, 798, 860, 1064, 1080, 1154, 1287, 1308, 1500, 1595, 1715, 1904, 2232, 2294, 2375, 2736, 2772, 2925, 3212, 3219, 3684, 3834, 4014, 4070, 4344, 4464, 4730, 4959, 5075, 5159]

cp's OEIS Frontend

A067262 Numbers k such that sigma(k+1) = 4*phi(k).

Table of values

List of values