A053194 - cp's OEIS frontend

A053194 a(n) is the smallest number k such that cototient(k) = 2n - 1.

n	a(n)
1	2
2	9
3	25
4	15
5	21
6	35
7	33
8	39
9	65
10	51
11	45
12	95
13	69
14	63
15	161
16	87
17	93
18	75
19	217
20	99
21	185
22	123
23	117
24	215
25	141
26	235
27	329
28	159
29	105
30	371
31	177
32	135
33	305
34	427
35	201
36	335
37	213
38	207
39	245
40	511
41	189
42	395
43	165
44	415
45	581
46	267
47	261
48	623
49	1501
50	195
51	485
52	303
53	225
54	515
55	321
56	231

[2, 9, 25, 15, 21, 35, 33, 39, 65, 51, 45, 95, 69, 63, 161, 87, 93, 75, 217, 99, 185, 123, 117, 215, 141, 235, 329, 159, 105, 371, 177, 135, 305, 427, 201, 335, 213, 207, 245, 511, 189, 395, 165, 415, 581, 267, 261, 623, 1501, 195, 485, 303, 225, 515, 321, 231]

cp's OEIS Frontend

A053194 a(n) is the smallest number k such that cototient(k) = 2n - 1.

Table of values

List of values