A157230 - cp's OEIS frontend

A157230 Number of primitive inequivalent sublattices of square lattice having mirrors parallel to the diagonals of the unit cell of the parent lattice of index n.

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

[0, 0, 1, 1, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 2, 2, 1, 1, 1, 2, 2, 1, 1, 4, 1, 1, 1, 2, 1, 2, 1, 2, 2, 1, 2, 2, 1, 1, 2, 4, 1, 2, 1, 2, 2, 1, 1, 4, 1, 1, 2, 2, 1, 1, 2, 4, 2, 1, 1, 4, 1, 1, 2, 2, 2, 2, 1, 2, 2, 2, 1, 4, 1, 1, 2, 2, 2, 2, 1, 4, 1, 1, 1, 4, 2, 1, 2]

cp's OEIS Frontend

A157230 Number of primitive inequivalent sublattices of square lattice having mirrors parallel to the diagonals of the unit cell of the parent lattice of index n.

Table of values

List of values

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

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

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