A015843 - cp's OEIS frontend

A015843 Numbers k such that phi(k) | sigma(k + 5).

n	a(n)
1	1
2	2
3	6
4	9
5	10
6	16
7	18
8	22
9	28
10	30
11	33
12	42
13	64
14	65
15	71
16	72
17	82
18	87
19	90
20	114
21	130
22	136
23	156
24	182
25	198
26	208
27	215
28	280
29	294
30	336
31	380
32	390
33	403
34	451
35	616
36	660
37	683
38	755
39	777
40	964
41	990
42	1168
43	1260
44	1267
45	1330
46	1342
47	1348
48	1480
49	1638
50	1744
51	1953
52	2025
53	2074
54	2088

[1, 2, 6, 9, 10, 16, 18, 22, 28, 30, 33, 42, 64, 65, 71, 72, 82, 87, 90, 114, 130, 136, 156, 182, 198, 208, 215, 280, 294, 336, 380, 390, 403, 451, 616, 660, 683, 755, 777, 964, 990, 1168, 1260, 1267, 1330, 1342, 1348, 1480, 1638, 1744, 1953, 2025, 2074, 2088]

cp's OEIS Frontend

A015843 Numbers k such that phi(k) | sigma(k + 5).

Table of values

List of values