A300064 - cp's OEIS frontend

A300064 Numbers k such that there are exactly phi(phi(k)) residues modulo k of the maximum order.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	9
9	10
10	11
11	13
12	14
13	15
14	16
15	17
16	18
17	19
18	20
19	22
20	23
21	25
22	26
23	27
24	29
25	30
26	31
27	32
28	34
29	35
30	37
31	38
32	39
33	40
34	41
35	43
36	45
37	46
38	47
39	48
40	49
41	50
42	51
43	52
44	53
45	54
46	55
47	58
48	59
49	60
50	61
51	62
52	64
53	67
54	68
55	70
56	71
57	73
58	74
59	75
60	78
61	79
62	81
63	82
64	83
65	85
66	86
67	87
68	89
69	90
70	94
71	95
72	96
73	97
74	98
75	100
76	101
77	102
78	103
79	104
80	105
81	106
82	107
83	109
84	110

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 13, 14, 15, 16, 17, 18, 19, 20, 22, 23, 25, 26, 27, 29, 30, 31, 32, 34, 35, 37, 38, 39, 40, 41, 43, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 58, 59, 60, 61, 62, 64, 67, 68, 70, 71, 73, 74, 75, 78, 79, 81, 82, 83, 85, 86, 87, 89, 90, 94, 95, 96, 97, 98, 100, 101, 102, 103, 104, 105, 106, 107, 109, 110]

cp's OEIS Frontend

A300064 Numbers k such that there are exactly phi(phi(k)) residues modulo k of the maximum order.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	9
9	10
10	11
11	13
12	14
13	15
14	16
15	17
16	18
17	19
18	20
19	22
20	23
21	25
22	26
23	27
24	29
25	30
26	31
27	32
28	34
29	35
30	37
31	38
32	39
33	40
34	41
35	43
36	45
37	46
38	47
39	48
40	49
41	50
42	51
43	52
44	53
45	54
46	55
47	58
48	59
49	60
50	61
51	62
52	64
53	67
54	68
55	70
56	71
57	73
58	74
59	75
60	78
61	79
62	81
63	82
64	83
65	85
66	86
67	87
68	89
69	90
70	94
71	95
72	96
73	97
74	98
75	100
76	101
77	102
78	103
79	104
80	105
81	106
82	107
83	109
84	110

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	9
9	10
10	11
11	13
12	14
13	15
14	16
15	17
16	18
17	19
18	20
19	22
20	23
21	25
22	26
23	27
24	29
25	30
26	31
27	32
28	34
29	35
30	37
31	38
32	39
33	40
34	41
35	43
36	45
37	46
38	47
39	48
40	49
41	50
42	51
43	52
44	53
45	54
46	55
47	58
48	59
49	60
50	61
51	62
52	64
53	67
54	68
55	70
56	71
57	73
58	74
59	75
60	78
61	79
62	81
63	82
64	83
65	85
66	86
67	87
68	89
69	90
70	94
71	95
72	96
73	97
74	98
75	100
76	101
77	102
78	103
79	104
80	105
81	106
82	107
83	109
84	110

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	9
9	10
10	11
11	13
12	14
13	15
14	16
15	17
16	18
17	19
18	20
19	22
20	23
21	25
22	26
23	27
24	29
25	30
26	31
27	32
28	34
29	35
30	37
31	38
32	39
33	40
34	41
35	43
36	45
37	46
38	47
39	48
40	49
41	50
42	51
43	52
44	53
45	54
46	55
47	58
48	59
49	60
50	61
51	62
52	64
53	67
54	68
55	70
56	71
57	73
58	74
59	75
60	78
61	79
62	81
63	82
64	83
65	85
66	86
67	87
68	89
69	90
70	94
71	95
72	96
73	97
74	98
75	100
76	101
77	102
78	103
79	104
80	105
81	106
82	107
83	109
84	110