A248671 - cp's OEIS frontend

A248671 Number of subgroups of the dihedral group Dn that are intersections of some maximal subgroups.

n	a(n)
1	1
2	4
3	5
4	4
5	7
6	15
7	9
8	4
9	5
10	21
11	13
12	15
13	15
14	27
15	27
16	4
17	19
18	15
19	21
20	21
21	35
22	39
23	25
24	15
25	7
26	45
27	5
28	27
29	31
30	79
31	33
32	4
33	51
34	57
35	51
36	15
37	39
38	63
39	59
40	21
41	43
42	103
43	45
44	39
45	27
46	75
47	49
48	15
49	9
50	21
51	75
52	45
53	55
54	15
55	75
56	27
57	83
58	93
59	61
60	79
61	63
62	99
63	35
64	4
65	87
66	151
67	69
68	57
69	99
70	151

[1, 4, 5, 4, 7, 15, 9, 4, 5, 21, 13, 15, 15, 27, 27, 4, 19, 15, 21, 21, 35, 39, 25, 15, 7, 45, 5, 27, 31, 79, 33, 4, 51, 57, 51, 15, 39, 63, 59, 21, 43, 103, 45, 39, 27, 75, 49, 15, 9, 21, 75, 45, 55, 15, 75, 27, 83, 93, 61, 79, 63, 99, 35, 4, 87, 151, 69, 57, 99, 151]

cp's OEIS Frontend

A248671 Number of subgroups of the dihedral group Dn that are intersections of some maximal subgroups.

Table of values

List of values

n	a(n)
1	1
2	4
3	5
4	4
5	7
6	15
7	9
8	4
9	5
10	21
11	13
12	15
13	15
14	27
15	27
16	4
17	19
18	15
19	21
20	21
21	35
22	39
23	25
24	15
25	7
26	45
27	5
28	27
29	31
30	79
31	33
32	4
33	51
34	57
35	51
36	15
37	39
38	63
39	59
40	21
41	43
42	103
43	45
44	39
45	27
46	75
47	49
48	15
49	9
50	21
51	75
52	45
53	55
54	15
55	75
56	27
57	83
58	93
59	61
60	79
61	63
62	99
63	35
64	4
65	87
66	151
67	69
68	57
69	99
70	151

n	a(n)
1	1
2	4
3	5
4	4
5	7
6	15
7	9
8	4
9	5
10	21
11	13
12	15
13	15
14	27
15	27
16	4
17	19
18	15
19	21
20	21
21	35
22	39
23	25
24	15
25	7
26	45
27	5
28	27
29	31
30	79
31	33
32	4
33	51
34	57
35	51
36	15
37	39
38	63
39	59
40	21
41	43
42	103
43	45
44	39
45	27
46	75
47	49
48	15
49	9
50	21
51	75
52	45
53	55
54	15
55	75
56	27
57	83
58	93
59	61
60	79
61	63
62	99
63	35
64	4
65	87
66	151
67	69
68	57
69	99
70	151

n	a(n)
1	1
2	4
3	5
4	4
5	7
6	15
7	9
8	4
9	5
10	21
11	13
12	15
13	15
14	27
15	27
16	4
17	19
18	15
19	21
20	21
21	35
22	39
23	25
24	15
25	7
26	45
27	5
28	27
29	31
30	79
31	33
32	4
33	51
34	57
35	51
36	15
37	39
38	63
39	59
40	21
41	43
42	103
43	45
44	39
45	27
46	75
47	49
48	15
49	9
50	21
51	75
52	45
53	55
54	15
55	75
56	27
57	83
58	93
59	61
60	79
61	63
62	99
63	35
64	4
65	87
66	151
67	69
68	57
69	99
70	151