A339400 - cp's OEIS frontend

A339400 Mark each point on the n X n grid with the number of points that are visible from it; a(n) is the number of distinct values in the grid.

n	a(n)
1	1
2	3
3	3
4	4
5	3
6	7
7	5
8	7
9	7
10	11
11	5
12	14
13	8
14	13
15	13
16	19
17	9
18	22
19	11
20	23
21	21
22	25
23	13
24	29
25	21
26	34
27	26
28	37
29	11
30	40
31	26
32	44
33	31
34	45
35	21
36	54
37	35
38	54
39	36
40	55
41	24
42	65
43	40
44	59
45	47
46	70
47	24
48	71
49	43
50	72
51	55
52	81
53	28
54	74
55	55
56	88
57	59
58	90
59	28
60	93
61	58
62	91
63	66
64	96
65	46
66	110
67	63
68	100

[1, 3, 3, 4, 3, 7, 5, 7, 7, 11, 5, 14, 8, 13, 13, 19, 9, 22, 11, 23, 21, 25, 13, 29, 21, 34, 26, 37, 11, 40, 26, 44, 31, 45, 21, 54, 35, 54, 36, 55, 24, 65, 40, 59, 47, 70, 24, 71, 43, 72, 55, 81, 28, 74, 55, 88, 59, 90, 28, 93, 58, 91, 66, 96, 46, 110, 63, 100]

cp's OEIS Frontend

A339400 Mark each point on the n X n grid with the number of points that are visible from it; a(n) is the number of distinct values in the grid.

Table of values

List of values

n	a(n)
1	1
2	3
3	3
4	4
5	3
6	7
7	5
8	7
9	7
10	11
11	5
12	14
13	8
14	13
15	13
16	19
17	9
18	22
19	11
20	23
21	21
22	25
23	13
24	29
25	21
26	34
27	26
28	37
29	11
30	40
31	26
32	44
33	31
34	45
35	21
36	54
37	35
38	54
39	36
40	55
41	24
42	65
43	40
44	59
45	47
46	70
47	24
48	71
49	43
50	72
51	55
52	81
53	28
54	74
55	55
56	88
57	59
58	90
59	28
60	93
61	58
62	91
63	66
64	96
65	46
66	110
67	63
68	100

n	a(n)
1	1
2	3
3	3
4	4
5	3
6	7
7	5
8	7
9	7
10	11
11	5
12	14
13	8
14	13
15	13
16	19
17	9
18	22
19	11
20	23
21	21
22	25
23	13
24	29
25	21
26	34
27	26
28	37
29	11
30	40
31	26
32	44
33	31
34	45
35	21
36	54
37	35
38	54
39	36
40	55
41	24
42	65
43	40
44	59
45	47
46	70
47	24
48	71
49	43
50	72
51	55
52	81
53	28
54	74
55	55
56	88
57	59
58	90
59	28
60	93
61	58
62	91
63	66
64	96
65	46
66	110
67	63
68	100

n	a(n)
1	1
2	3
3	3
4	4
5	3
6	7
7	5
8	7
9	7
10	11
11	5
12	14
13	8
14	13
15	13
16	19
17	9
18	22
19	11
20	23
21	21
22	25
23	13
24	29
25	21
26	34
27	26
28	37
29	11
30	40
31	26
32	44
33	31
34	45
35	21
36	54
37	35
38	54
39	36
40	55
41	24
42	65
43	40
44	59
45	47
46	70
47	24
48	71
49	43
50	72
51	55
52	81
53	28
54	74
55	55
56	88
57	59
58	90
59	28
60	93
61	58
62	91
63	66
64	96
65	46
66	110
67	63
68	100