A157226 - cp's OEIS frontend

A157226 Number of primitive inequivalent sublattices of square lattice having mirrors parallel to the sides of the unit cell of the parent lattice of index n.

n	a(n)
1	0
2	1
3	1
4	2
5	1
6	3
7	1
8	2
9	1
10	3
11	1
12	4
13	1
14	3
15	2
16	2
17	1
18	3
19	1
20	4
21	2
22	3
23	1
24	4
25	1
26	3
27	1
28	4
29	1
30	6
31	1
32	2
33	2
34	3
35	2
36	4
37	1
38	3
39	2
40	4
41	1
42	6
43	1
44	4
45	2
46	3
47	1
48	4
49	1
50	3
51	2
52	4
53	1
54	3
55	2
56	4
57	2
58	3
59	1
60	8
61	1
62	3
63	2
64	2
65	2
66	6
67	1
68	4
69	2
70	6
71	1
72	4
73	1
74	3
75	2
76	4
77	2
78	6
79	1
80	4
81	1
82	3
83	1
84	8
85	2
86	3
87	2

[0, 1, 1, 2, 1, 3, 1, 2, 1, 3, 1, 4, 1, 3, 2, 2, 1, 3, 1, 4, 2, 3, 1, 4, 1, 3, 1, 4, 1, 6, 1, 2, 2, 3, 2, 4, 1, 3, 2, 4, 1, 6, 1, 4, 2, 3, 1, 4, 1, 3, 2, 4, 1, 3, 2, 4, 2, 3, 1, 8, 1, 3, 2, 2, 2, 6, 1, 4, 2, 6, 1, 4, 1, 3, 2, 4, 2, 6, 1, 4, 1, 3, 1, 8, 2, 3, 2]

cp's OEIS Frontend

A157226 Number of primitive inequivalent sublattices of square lattice having mirrors parallel to the sides of the unit cell of the parent lattice of index n.

Table of values

List of values

n	a(n)
1	0
2	1
3	1
4	2
5	1
6	3
7	1
8	2
9	1
10	3
11	1
12	4
13	1
14	3
15	2
16	2
17	1
18	3
19	1
20	4
21	2
22	3
23	1
24	4
25	1
26	3
27	1
28	4
29	1
30	6
31	1
32	2
33	2
34	3
35	2
36	4
37	1
38	3
39	2
40	4
41	1
42	6
43	1
44	4
45	2
46	3
47	1
48	4
49	1
50	3
51	2
52	4
53	1
54	3
55	2
56	4
57	2
58	3
59	1
60	8
61	1
62	3
63	2
64	2
65	2
66	6
67	1
68	4
69	2
70	6
71	1
72	4
73	1
74	3
75	2
76	4
77	2
78	6
79	1
80	4
81	1
82	3
83	1
84	8
85	2
86	3
87	2

n	a(n)
1	0
2	1
3	1
4	2
5	1
6	3
7	1
8	2
9	1
10	3
11	1
12	4
13	1
14	3
15	2
16	2
17	1
18	3
19	1
20	4
21	2
22	3
23	1
24	4
25	1
26	3
27	1
28	4
29	1
30	6
31	1
32	2
33	2
34	3
35	2
36	4
37	1
38	3
39	2
40	4
41	1
42	6
43	1
44	4
45	2
46	3
47	1
48	4
49	1
50	3
51	2
52	4
53	1
54	3
55	2
56	4
57	2
58	3
59	1
60	8
61	1
62	3
63	2
64	2
65	2
66	6
67	1
68	4
69	2
70	6
71	1
72	4
73	1
74	3
75	2
76	4
77	2
78	6
79	1
80	4
81	1
82	3
83	1
84	8
85	2
86	3
87	2

n	a(n)
1	0
2	1
3	1
4	2
5	1
6	3
7	1
8	2
9	1
10	3
11	1
12	4
13	1
14	3
15	2
16	2
17	1
18	3
19	1
20	4
21	2
22	3
23	1
24	4
25	1
26	3
27	1
28	4
29	1
30	6
31	1
32	2
33	2
34	3
35	2
36	4
37	1
38	3
39	2
40	4
41	1
42	6
43	1
44	4
45	2
46	3
47	1
48	4
49	1
50	3
51	2
52	4
53	1
54	3
55	2
56	4
57	2
58	3
59	1
60	8
61	1
62	3
63	2
64	2
65	2
66	6
67	1
68	4
69	2
70	6
71	1
72	4
73	1
74	3
75	2
76	4
77	2
78	6
79	1
80	4
81	1
82	3
83	1
84	8
85	2
86	3
87	2