A141225 - cp's OEIS frontend

A141225 Number of points having maximal visibility in a square n x n lattice.

n	a(n)
1	1
2	4
3	1
4	4
5	8
6	16
7	8
8	12
9	16
10	36
11	9
12	60
13	16
14	16
15	8
16	12
17	12
18	12
19	12
20	36
21	16
22	16
23	25
24	4
25	16
26	8
27	5
28	12
29	24
30	64
31	12
32	8
33	4
34	4
35	25
36	16
37	4
38	8
39	1
40	20
41	16
42	4
43	20
44	12
45	4
46	4
47	9
48	8
49	4
50	4
51	4
52	4
53	12
54	4
55	4
56	4
57	4
58	12
59	9
60	4
61	8
62	4
63	8
64	12
65	8
66	4
67	4
68	8
69	4
70	16
71	12
72	20
73	4
74	8
75	4
76	4
77	16
78	4
79	4
80	4
81	4
82	4
83	4
84	4
85	4
86	4
87	8
88	4
89	4

[1, 4, 1, 4, 8, 16, 8, 12, 16, 36, 9, 60, 16, 16, 8, 12, 12, 12, 12, 36, 16, 16, 25, 4, 16, 8, 5, 12, 24, 64, 12, 8, 4, 4, 25, 16, 4, 8, 1, 20, 16, 4, 20, 12, 4, 4, 9, 8, 4, 4, 4, 4, 12, 4, 4, 4, 4, 12, 9, 4, 8, 4, 8, 12, 8, 4, 4, 8, 4, 16, 12, 20, 4, 8, 4, 4, 16, 4, 4, 4, 4, 4, 4, 4, 4, 4, 8, 4, 4]

cp's OEIS Frontend

A141225 Number of points having maximal visibility in a square n x n lattice.

Table of values

List of values

n	a(n)
1	1
2	4
3	1
4	4
5	8
6	16
7	8
8	12
9	16
10	36
11	9
12	60
13	16
14	16
15	8
16	12
17	12
18	12
19	12
20	36
21	16
22	16
23	25
24	4
25	16
26	8
27	5
28	12
29	24
30	64
31	12
32	8
33	4
34	4
35	25
36	16
37	4
38	8
39	1
40	20
41	16
42	4
43	20
44	12
45	4
46	4
47	9
48	8
49	4
50	4
51	4
52	4
53	12
54	4
55	4
56	4
57	4
58	12
59	9
60	4
61	8
62	4
63	8
64	12
65	8
66	4
67	4
68	8
69	4
70	16
71	12
72	20
73	4
74	8
75	4
76	4
77	16
78	4
79	4
80	4
81	4
82	4
83	4
84	4
85	4
86	4
87	8
88	4
89	4

n	a(n)
1	1
2	4
3	1
4	4
5	8
6	16
7	8
8	12
9	16
10	36
11	9
12	60
13	16
14	16
15	8
16	12
17	12
18	12
19	12
20	36
21	16
22	16
23	25
24	4
25	16
26	8
27	5
28	12
29	24
30	64
31	12
32	8
33	4
34	4
35	25
36	16
37	4
38	8
39	1
40	20
41	16
42	4
43	20
44	12
45	4
46	4
47	9
48	8
49	4
50	4
51	4
52	4
53	12
54	4
55	4
56	4
57	4
58	12
59	9
60	4
61	8
62	4
63	8
64	12
65	8
66	4
67	4
68	8
69	4
70	16
71	12
72	20
73	4
74	8
75	4
76	4
77	16
78	4
79	4
80	4
81	4
82	4
83	4
84	4
85	4
86	4
87	8
88	4
89	4

n	a(n)
1	1
2	4
3	1
4	4
5	8
6	16
7	8
8	12
9	16
10	36
11	9
12	60
13	16
14	16
15	8
16	12
17	12
18	12
19	12
20	36
21	16
22	16
23	25
24	4
25	16
26	8
27	5
28	12
29	24
30	64
31	12
32	8
33	4
34	4
35	25
36	16
37	4
38	8
39	1
40	20
41	16
42	4
43	20
44	12
45	4
46	4
47	9
48	8
49	4
50	4
51	4
52	4
53	12
54	4
55	4
56	4
57	4
58	12
59	9
60	4
61	8
62	4
63	8
64	12
65	8
66	4
67	4
68	8
69	4
70	16
71	12
72	20
73	4
74	8
75	4
76	4
77	16
78	4
79	4
80	4
81	4
82	4
83	4
84	4
85	4
86	4
87	8
88	4
89	4