A208133 - cp's OEIS frontend

A208133 Total number of subgroups of rank <= 2 of a certain class of abelian groups of order n defined as direct products of Z/(mZ) X Z/(kZ) with m|k.

n	a(n)
1	1
2	2
3	2
4	8
5	2
6	4
7	2
8	12
9	9
10	4
11	2
12	16
13	2
14	4
15	4
16	31
17	2
18	18
19	2
20	16
21	4
22	4
23	2
24	24
25	11
26	4
27	14
28	16
29	2
30	8
31	2
32	42
33	4
34	4
35	4
36	72
37	2
38	4
39	4
40	24
41	2
42	8
43	2
44	16
45	18
46	4
47	2
48	62
49	13
50	22
51	4
52	16
53	2
54	28
55	4
56	24
57	4
58	4
59	2
60	32
61	2
62	4
63	18
64	90
65	4
66	8
67	2
68	16
69	4
70	8
71	2
72	108
73	2
74	4
75	22
76	16

[1, 2, 2, 8, 2, 4, 2, 12, 9, 4, 2, 16, 2, 4, 4, 31, 2, 18, 2, 16, 4, 4, 2, 24, 11, 4, 14, 16, 2, 8, 2, 42, 4, 4, 4, 72, 2, 4, 4, 24, 2, 8, 2, 16, 18, 4, 2, 62, 13, 22, 4, 16, 2, 28, 4, 24, 4, 4, 2, 32, 2, 4, 18, 90, 4, 8, 2, 16, 4, 8, 2, 108, 2, 4, 22, 16]

cp's OEIS Frontend

A208133 Total number of subgroups of rank <= 2 of a certain class of abelian groups of order n defined as direct products of Z/(mZ) X Z/(kZ) with m|k.

Table of values

List of values

n	a(n)
1	1
2	2
3	2
4	8
5	2
6	4
7	2
8	12
9	9
10	4
11	2
12	16
13	2
14	4
15	4
16	31
17	2
18	18
19	2
20	16
21	4
22	4
23	2
24	24
25	11
26	4
27	14
28	16
29	2
30	8
31	2
32	42
33	4
34	4
35	4
36	72
37	2
38	4
39	4
40	24
41	2
42	8
43	2
44	16
45	18
46	4
47	2
48	62
49	13
50	22
51	4
52	16
53	2
54	28
55	4
56	24
57	4
58	4
59	2
60	32
61	2
62	4
63	18
64	90
65	4
66	8
67	2
68	16
69	4
70	8
71	2
72	108
73	2
74	4
75	22
76	16

n	a(n)
1	1
2	2
3	2
4	8
5	2
6	4
7	2
8	12
9	9
10	4
11	2
12	16
13	2
14	4
15	4
16	31
17	2
18	18
19	2
20	16
21	4
22	4
23	2
24	24
25	11
26	4
27	14
28	16
29	2
30	8
31	2
32	42
33	4
34	4
35	4
36	72
37	2
38	4
39	4
40	24
41	2
42	8
43	2
44	16
45	18
46	4
47	2
48	62
49	13
50	22
51	4
52	16
53	2
54	28
55	4
56	24
57	4
58	4
59	2
60	32
61	2
62	4
63	18
64	90
65	4
66	8
67	2
68	16
69	4
70	8
71	2
72	108
73	2
74	4
75	22
76	16

n	a(n)
1	1
2	2
3	2
4	8
5	2
6	4
7	2
8	12
9	9
10	4
11	2
12	16
13	2
14	4
15	4
16	31
17	2
18	18
19	2
20	16
21	4
22	4
23	2
24	24
25	11
26	4
27	14
28	16
29	2
30	8
31	2
32	42
33	4
34	4
35	4
36	72
37	2
38	4
39	4
40	24
41	2
42	8
43	2
44	16
45	18
46	4
47	2
48	62
49	13
50	22
51	4
52	16
53	2
54	28
55	4
56	24
57	4
58	4
59	2
60	32
61	2
62	4
63	18
64	90
65	4
66	8
67	2
68	16
69	4
70	8
71	2
72	108
73	2
74	4
75	22
76	16