A328413 - cp's OEIS frontend

A328413 Numbers k such that (Z/mZ)* = C_2 X C_(2k) has solutions m, where (Z/mZ)* is the multiplicative group of integers modulo m.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	8
8	9
9	10
10	11
11	14
12	15
13	16
14	18
15	20
16	21
17	22
18	23
19	24
20	26
21	27
22	29
23	30
24	32
25	33
26	35
27	36
28	39
29	40
30	41
31	42
32	44
33	45
34	46
35	48
36	50
37	51
38	53
39	54
40	55
41	56
42	58
43	60
44	63
45	64
46	65
47	66
48	68
49	69
50	70
51	72
52	74
53	75
54	78
55	81
56	82
57	83
58	86
59	87
60	88
61	89
62	90
63	95
64	96
65	98
66	99
67	102
68	105
69	106
70	110
71	111

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 14, 15, 16, 18, 20, 21, 22, 23, 24, 26, 27, 29, 30, 32, 33, 35, 36, 39, 40, 41, 42, 44, 45, 46, 48, 50, 51, 53, 54, 55, 56, 58, 60, 63, 64, 65, 66, 68, 69, 70, 72, 74, 75, 78, 81, 82, 83, 86, 87, 88, 89, 90, 95, 96, 98, 99, 102, 105, 106, 110, 111]

cp's OEIS Frontend

A328413 Numbers k such that (Z/mZ)* = C_2 X C_(2k) has solutions m, where (Z/mZ)* is the multiplicative group of integers modulo m.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	8
8	9
9	10
10	11
11	14
12	15
13	16
14	18
15	20
16	21
17	22
18	23
19	24
20	26
21	27
22	29
23	30
24	32
25	33
26	35
27	36
28	39
29	40
30	41
31	42
32	44
33	45
34	46
35	48
36	50
37	51
38	53
39	54
40	55
41	56
42	58
43	60
44	63
45	64
46	65
47	66
48	68
49	69
50	70
51	72
52	74
53	75
54	78
55	81
56	82
57	83
58	86
59	87
60	88
61	89
62	90
63	95
64	96
65	98
66	99
67	102
68	105
69	106
70	110
71	111

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	8
8	9
9	10
10	11
11	14
12	15
13	16
14	18
15	20
16	21
17	22
18	23
19	24
20	26
21	27
22	29
23	30
24	32
25	33
26	35
27	36
28	39
29	40
30	41
31	42
32	44
33	45
34	46
35	48
36	50
37	51
38	53
39	54
40	55
41	56
42	58
43	60
44	63
45	64
46	65
47	66
48	68
49	69
50	70
51	72
52	74
53	75
54	78
55	81
56	82
57	83
58	86
59	87
60	88
61	89
62	90
63	95
64	96
65	98
66	99
67	102
68	105
69	106
70	110
71	111

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	8
8	9
9	10
10	11
11	14
12	15
13	16
14	18
15	20
16	21
17	22
18	23
19	24
20	26
21	27
22	29
23	30
24	32
25	33
26	35
27	36
28	39
29	40
30	41
31	42
32	44
33	45
34	46
35	48
36	50
37	51
38	53
39	54
40	55
41	56
42	58
43	60
44	63
45	64
46	65
47	66
48	68
49	69
50	70
51	72
52	74
53	75
54	78
55	81
56	82
57	83
58	86
59	87
60	88
61	89
62	90
63	95
64	96
65	98
66	99
67	102
68	105
69	106
70	110
71	111