A328410 - cp's OEIS frontend

A328410 Smallest m such that (Z/mZ)* = C_2 X C_(2n), or 0 if no such m exists, where (Z/mZ)* is the multiplicative group of integers modulo m.

n	a(n)
1	8
2	15
3	21
4	32
5	33
6	35
7	0
8	51
9	57
10	55
11	69
12	0
13	0
14	87
15	77
16	128
17	0
18	95
19	0
20	123
21	129
22	115
23	141
24	119
25	0
26	159
27	324
28	0
29	177
30	143
31	0
32	256
33	161
34	0
35	213
36	219
37	0
38	0
39	237
40	187
41	249
42	203
43	0
44	267
45	209
46	235
47	0
48	291
49	0
50	303
51	309
52	0
53	321
54	327
55	253
56	339
57	0
58	295
59	0
60	287
61	0
62	0
63	381
64	512
65	393
66	299
67	0

[8, 15, 21, 32, 33, 35, 0, 51, 57, 55, 69, 0, 0, 87, 77, 128, 0, 95, 0, 123, 129, 115, 141, 119, 0, 159, 324, 0, 177, 143, 0, 256, 161, 0, 213, 219, 0, 0, 237, 187, 249, 203, 0, 267, 209, 235, 0, 291, 0, 303, 309, 0, 321, 327, 253, 339, 0, 295, 0, 287, 0, 0, 381, 512, 393, 299, 0]

cp's OEIS Frontend

A328410 Smallest m such that (Z/mZ)* = C_2 X C_(2n), or 0 if no such m exists, where (Z/mZ)* is the multiplicative group of integers modulo m.

Table of values

List of values

n	a(n)
1	8
2	15
3	21
4	32
5	33
6	35
7	0
8	51
9	57
10	55
11	69
12	0
13	0
14	87
15	77
16	128
17	0
18	95
19	0
20	123
21	129
22	115
23	141
24	119
25	0
26	159
27	324
28	0
29	177
30	143
31	0
32	256
33	161
34	0
35	213
36	219
37	0
38	0
39	237
40	187
41	249
42	203
43	0
44	267
45	209
46	235
47	0
48	291
49	0
50	303
51	309
52	0
53	321
54	327
55	253
56	339
57	0
58	295
59	0
60	287
61	0
62	0
63	381
64	512
65	393
66	299
67	0

n	a(n)
1	8
2	15
3	21
4	32
5	33
6	35
7	0
8	51
9	57
10	55
11	69
12	0
13	0
14	87
15	77
16	128
17	0
18	95
19	0
20	123
21	129
22	115
23	141
24	119
25	0
26	159
27	324
28	0
29	177
30	143
31	0
32	256
33	161
34	0
35	213
36	219
37	0
38	0
39	237
40	187
41	249
42	203
43	0
44	267
45	209
46	235
47	0
48	291
49	0
50	303
51	309
52	0
53	321
54	327
55	253
56	339
57	0
58	295
59	0
60	287
61	0
62	0
63	381
64	512
65	393
66	299
67	0

n	a(n)
1	8
2	15
3	21
4	32
5	33
6	35
7	0
8	51
9	57
10	55
11	69
12	0
13	0
14	87
15	77
16	128
17	0
18	95
19	0
20	123
21	129
22	115
23	141
24	119
25	0
26	159
27	324
28	0
29	177
30	143
31	0
32	256
33	161
34	0
35	213
36	219
37	0
38	0
39	237
40	187
41	249
42	203
43	0
44	267
45	209
46	235
47	0
48	291
49	0
50	303
51	309
52	0
53	321
54	327
55	253
56	339
57	0
58	295
59	0
60	287
61	0
62	0
63	381
64	512
65	393
66	299
67	0