A054384 - cp's OEIS frontend

A054384 Number of inequivalent sublattices of index n in hexagonal lattice, where two sublattices are considered equivalent if one can be rotated to give the other.

n	a(n)
0	1
1	1
2	1
3	2
4	3
5	2
6	4
7	3
8	5
9	5
10	6
11	4
12	10
13	5
14	7
15	8
16	11
17	6
18	13
19	7
20	14
21	10
22	12
23	8
24	20
25	11
26	13
27	14
28	17
29	10
30	24
31	11
32	21
33	16
34	18
35	14
36	31
37	13
38	19
39	18
40	30
41	14
42	28
43	15
44	28
45	26
46	24
47	16
48	42
49	17
50	31
51	24
52	31
53	18
54	40
55	24
56	35
57	26
58	30
59	20
60	56
61	21
62	31
63	31
64	43
65	26
66	48
67	23
68	42
69	32
70	42
71	24
72	65

[1, 1, 1, 2, 3, 2, 4, 3, 5, 5, 6, 4, 10, 5, 7, 8, 11, 6, 13, 7, 14, 10, 12, 8, 20, 11, 13, 14, 17, 10, 24, 11, 21, 16, 18, 14, 31, 13, 19, 18, 30, 14, 28, 15, 28, 26, 24, 16, 42, 17, 31, 24, 31, 18, 40, 24, 35, 26, 30, 20, 56, 21, 31, 31, 43, 26, 48, 23, 42, 32, 42, 24, 65]

cp's OEIS Frontend

A054384 Number of inequivalent sublattices of index n in hexagonal lattice, where two sublattices are considered equivalent if one can be rotated to give the other.

Table of values

List of values

n	a(n)
0	1
1	1
2	1
3	2
4	3
5	2
6	4
7	3
8	5
9	5
10	6
11	4
12	10
13	5
14	7
15	8
16	11
17	6
18	13
19	7
20	14
21	10
22	12
23	8
24	20
25	11
26	13
27	14
28	17
29	10
30	24
31	11
32	21
33	16
34	18
35	14
36	31
37	13
38	19
39	18
40	30
41	14
42	28
43	15
44	28
45	26
46	24
47	16
48	42
49	17
50	31
51	24
52	31
53	18
54	40
55	24
56	35
57	26
58	30
59	20
60	56
61	21
62	31
63	31
64	43
65	26
66	48
67	23
68	42
69	32
70	42
71	24
72	65

n	a(n)
0	1
1	1
2	1
3	2
4	3
5	2
6	4
7	3
8	5
9	5
10	6
11	4
12	10
13	5
14	7
15	8
16	11
17	6
18	13
19	7
20	14
21	10
22	12
23	8
24	20
25	11
26	13
27	14
28	17
29	10
30	24
31	11
32	21
33	16
34	18
35	14
36	31
37	13
38	19
39	18
40	30
41	14
42	28
43	15
44	28
45	26
46	24
47	16
48	42
49	17
50	31
51	24
52	31
53	18
54	40
55	24
56	35
57	26
58	30
59	20
60	56
61	21
62	31
63	31
64	43
65	26
66	48
67	23
68	42
69	32
70	42
71	24
72	65

n	a(n)
0	1
1	1
2	1
3	2
4	3
5	2
6	4
7	3
8	5
9	5
10	6
11	4
12	10
13	5
14	7
15	8
16	11
17	6
18	13
19	7
20	14
21	10
22	12
23	8
24	20
25	11
26	13
27	14
28	17
29	10
30	24
31	11
32	21
33	16
34	18
35	14
36	31
37	13
38	19
39	18
40	30
41	14
42	28
43	15
44	28
45	26
46	24
47	16
48	42
49	17
50	31
51	24
52	31
53	18
54	40
55	24
56	35
57	26
58	30
59	20
60	56
61	21
62	31
63	31
64	43
65	26
66	48
67	23
68	42
69	32
70	42
71	24
72	65