A140435 - cp's OEIS frontend

A140435 Number of new lattice points created at each step in an n X n grid that are not visible.

n	a(n)
1	0
2	1
3	1
4	3
5	1
6	7
7	1
8	7
9	5
10	11
11	1
12	15
13	1
14	15
15	13
16	15
17	1
18	23
19	1
20	23
21	17
22	23
23	1
24	31
25	9
26	27
27	17
28	31
29	1
30	43
31	1
32	31
33	25
34	35
35	21
36	47
37	1
38	39
39	29
40	47
41	1
42	59
43	1
44	47
45	41
46	47
47	1
48	63
49	13
50	59
51	37
52	55
53	1
54	71
55	29
56	63
57	41
58	59
59	1
60	87
61	1
62	63
63	53
64	63
65	33
66	91
67	1
68	71
69	49
70	91
71	1
72	95
73	1
74	75
75	69
76	79
77	33
78	107
79	1
80	95
81	53

[0, 1, 1, 3, 1, 7, 1, 7, 5, 11, 1, 15, 1, 15, 13, 15, 1, 23, 1, 23, 17, 23, 1, 31, 9, 27, 17, 31, 1, 43, 1, 31, 25, 35, 21, 47, 1, 39, 29, 47, 1, 59, 1, 47, 41, 47, 1, 63, 13, 59, 37, 55, 1, 71, 29, 63, 41, 59, 1, 87, 1, 63, 53, 63, 33, 91, 1, 71, 49, 91, 1, 95, 1, 75, 69, 79, 33, 107, 1, 95, 53]

cp's OEIS Frontend

A140435 Number of new lattice points created at each step in an n X n grid that are not visible.

Table of values

List of values

n	a(n)
1	0
2	1
3	1
4	3
5	1
6	7
7	1
8	7
9	5
10	11
11	1
12	15
13	1
14	15
15	13
16	15
17	1
18	23
19	1
20	23
21	17
22	23
23	1
24	31
25	9
26	27
27	17
28	31
29	1
30	43
31	1
32	31
33	25
34	35
35	21
36	47
37	1
38	39
39	29
40	47
41	1
42	59
43	1
44	47
45	41
46	47
47	1
48	63
49	13
50	59
51	37
52	55
53	1
54	71
55	29
56	63
57	41
58	59
59	1
60	87
61	1
62	63
63	53
64	63
65	33
66	91
67	1
68	71
69	49
70	91
71	1
72	95
73	1
74	75
75	69
76	79
77	33
78	107
79	1
80	95
81	53

n	a(n)
1	0
2	1
3	1
4	3
5	1
6	7
7	1
8	7
9	5
10	11
11	1
12	15
13	1
14	15
15	13
16	15
17	1
18	23
19	1
20	23
21	17
22	23
23	1
24	31
25	9
26	27
27	17
28	31
29	1
30	43
31	1
32	31
33	25
34	35
35	21
36	47
37	1
38	39
39	29
40	47
41	1
42	59
43	1
44	47
45	41
46	47
47	1
48	63
49	13
50	59
51	37
52	55
53	1
54	71
55	29
56	63
57	41
58	59
59	1
60	87
61	1
62	63
63	53
64	63
65	33
66	91
67	1
68	71
69	49
70	91
71	1
72	95
73	1
74	75
75	69
76	79
77	33
78	107
79	1
80	95
81	53

n	a(n)
1	0
2	1
3	1
4	3
5	1
6	7
7	1
8	7
9	5
10	11
11	1
12	15
13	1
14	15
15	13
16	15
17	1
18	23
19	1
20	23
21	17
22	23
23	1
24	31
25	9
26	27
27	17
28	31
29	1
30	43
31	1
32	31
33	25
34	35
35	21
36	47
37	1
38	39
39	29
40	47
41	1
42	59
43	1
44	47
45	41
46	47
47	1
48	63
49	13
50	59
51	37
52	55
53	1
54	71
55	29
56	63
57	41
58	59
59	1
60	87
61	1
62	63
63	53
64	63
65	33
66	91
67	1
68	71
69	49
70	91
71	1
72	95
73	1
74	75
75	69
76	79
77	33
78	107
79	1
80	95
81	53