A222264 - cp's OEIS frontend

A222264 Numbers n such that 2n/sigma(n) - 1 = 1/x for some integer x.

n	a(n)
1	1
2	2
3	3
4	4
5	8
6	10
7	14
8	15
9	16
10	32
11	44
12	64
13	110
14	128
15	135
16	136
17	152
18	182
19	184
20	190
21	248
22	256
23	315
24	512
25	585
26	752
27	819
28	884
29	1012
30	1024
31	1155
32	1365
33	1485
34	1550
35	1892
36	2048
37	2144
38	2272
39	2295
40	2528
41	4064
42	4096
43	4455
44	6490
45	7030
46	8192
47	8384
48	8648
49	9009
50	9405
51	9945

[1, 2, 3, 4, 8, 10, 14, 15, 16, 32, 44, 64, 110, 128, 135, 136, 152, 182, 184, 190, 248, 256, 315, 512, 585, 752, 819, 884, 1012, 1024, 1155, 1365, 1485, 1550, 1892, 2048, 2144, 2272, 2295, 2528, 4064, 4096, 4455, 6490, 7030, 8192, 8384, 8648, 9009, 9405, 9945]

cp's OEIS Frontend

A222264 Numbers n such that 2n/sigma(n) - 1 = 1/x for some integer x.

Table of values

List of values