A002181 - cp's OEIS frontend

A002181 Least number k such that phi(k) = m, where m runs through the values (A002202) taken by phi.

n	a(n)
1	1
2	3
3	5
4	7
5	15
6	11
7	13
8	17
9	19
10	25
11	23
12	35
13	29
14	31
15	51
16	37
17	41
18	43
19	69
20	47
21	65
22	53
23	81
24	87
25	59
26	61
27	85
28	67
29	71
30	73
31	79
32	123
33	83
34	129
35	89
36	141
37	97
38	101
39	103
40	159
41	107
42	109
43	121
44	113
45	177
46	143
47	127
48	255
49	131
50	161
51	137
52	139
53	213
54	185
55	149
56	151
57	157
58	187
59	163
60	249
61	167
62	203
63	173

[1, 3, 5, 7, 15, 11, 13, 17, 19, 25, 23, 35, 29, 31, 51, 37, 41, 43, 69, 47, 65, 53, 81, 87, 59, 61, 85, 67, 71, 73, 79, 123, 83, 129, 89, 141, 97, 101, 103, 159, 107, 109, 121, 113, 177, 143, 127, 255, 131, 161, 137, 139, 213, 185, 149, 151, 157, 187, 163, 249, 167, 203, 173]

cp's OEIS Frontend

A002181 Least number k such that phi(k) = m, where m runs through the values (A002202) taken by phi.

Table of values

List of values

n	a(n)
1	1
2	3
3	5
4	7
5	15
6	11
7	13
8	17
9	19
10	25
11	23
12	35
13	29
14	31
15	51
16	37
17	41
18	43
19	69
20	47
21	65
22	53
23	81
24	87
25	59
26	61
27	85
28	67
29	71
30	73
31	79
32	123
33	83
34	129
35	89
36	141
37	97
38	101
39	103
40	159
41	107
42	109
43	121
44	113
45	177
46	143
47	127
48	255
49	131
50	161
51	137
52	139
53	213
54	185
55	149
56	151
57	157
58	187
59	163
60	249
61	167
62	203
63	173

n	a(n)
1	1
2	3
3	5
4	7
5	15
6	11
7	13
8	17
9	19
10	25
11	23
12	35
13	29
14	31
15	51
16	37
17	41
18	43
19	69
20	47
21	65
22	53
23	81
24	87
25	59
26	61
27	85
28	67
29	71
30	73
31	79
32	123
33	83
34	129
35	89
36	141
37	97
38	101
39	103
40	159
41	107
42	109
43	121
44	113
45	177
46	143
47	127
48	255
49	131
50	161
51	137
52	139
53	213
54	185
55	149
56	151
57	157
58	187
59	163
60	249
61	167
62	203
63	173

n	a(n)
1	1
2	3
3	5
4	7
5	15
6	11
7	13
8	17
9	19
10	25
11	23
12	35
13	29
14	31
15	51
16	37
17	41
18	43
19	69
20	47
21	65
22	53
23	81
24	87
25	59
26	61
27	85
28	67
29	71
30	73
31	79
32	123
33	83
34	129
35	89
36	141
37	97
38	101
39	103
40	159
41	107
42	109
43	121
44	113
45	177
46	143
47	127
48	255
49	131
50	161
51	137
52	139
53	213
54	185
55	149
56	151
57	157
58	187
59	163
60	249
61	167
62	203
63	173