A290966 - cp's OEIS frontend

A290966 The number of convex layers in an n X n grid of points.

n	a(n)
1	1
2	1
3	3
4	3
5	6
6	6
7	9
8	9
9	12
10	12
11	15
12	15
13	19
14	19
15	23
16	23
17	27
18	27
19	31
20	31
21	35
22	35
23	40
24	40
25	45
26	45
27	50
28	50
29	55
30	55
31	60
32	60
33	65
34	65
35	70
36	70
37	75
38	75
39	80
40	80
41	85
42	85
43	90
44	90
45	95
46	95
47	100
48	100
49	105
50	105
51	110
52	110
53	116
54	116
55	122
56	122
57	129
58	129
59	135
60	135

[1, 1, 3, 3, 6, 6, 9, 9, 12, 12, 15, 15, 19, 19, 23, 23, 27, 27, 31, 31, 35, 35, 40, 40, 45, 45, 50, 50, 55, 55, 60, 60, 65, 65, 70, 70, 75, 75, 80, 80, 85, 85, 90, 90, 95, 95, 100, 100, 105, 105, 110, 110, 116, 116, 122, 122, 129, 129, 135, 135]

cp's OEIS Frontend

A290966 The number of convex layers in an n X n grid of points.

Table of values

List of values

n	a(n)
1	1
2	1
3	3
4	3
5	6
6	6
7	9
8	9
9	12
10	12
11	15
12	15
13	19
14	19
15	23
16	23
17	27
18	27
19	31
20	31
21	35
22	35
23	40
24	40
25	45
26	45
27	50
28	50
29	55
30	55
31	60
32	60
33	65
34	65
35	70
36	70
37	75
38	75
39	80
40	80
41	85
42	85
43	90
44	90
45	95
46	95
47	100
48	100
49	105
50	105
51	110
52	110
53	116
54	116
55	122
56	122
57	129
58	129
59	135
60	135

n	a(n)
1	1
2	1
3	3
4	3
5	6
6	6
7	9
8	9
9	12
10	12
11	15
12	15
13	19
14	19
15	23
16	23
17	27
18	27
19	31
20	31
21	35
22	35
23	40
24	40
25	45
26	45
27	50
28	50
29	55
30	55
31	60
32	60
33	65
34	65
35	70
36	70
37	75
38	75
39	80
40	80
41	85
42	85
43	90
44	90
45	95
46	95
47	100
48	100
49	105
50	105
51	110
52	110
53	116
54	116
55	122
56	122
57	129
58	129
59	135
60	135

n	a(n)
1	1
2	1
3	3
4	3
5	6
6	6
7	9
8	9
9	12
10	12
11	15
12	15
13	19
14	19
15	23
16	23
17	27
18	27
19	31
20	31
21	35
22	35
23	40
24	40
25	45
26	45
27	50
28	50
29	55
30	55
31	60
32	60
33	65
34	65
35	70
36	70
37	75
38	75
39	80
40	80
41	85
42	85
43	90
44	90
45	95
46	95
47	100
48	100
49	105
50	105
51	110
52	110
53	116
54	116
55	122
56	122
57	129
58	129
59	135
60	135