A361486 - cp's OEIS frontend

A361486 Lexicographically earliest sequence of positive numbers on a square spiral such that no three equal numbers are collinear.

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	2
7	3
8	2
9	2
10	3
11	2
12	2
13	3
14	2
15	2
16	3
17	1
18	3
19	3
20	1
21	4
22	1
23	4
24	3
25	5
26	5
27	1
28	4
29	3
30	4
31	5
32	4
33	4
34	5
35	6
36	6
37	7
38	4
39	4
40	5
41	5
42	6
43	2
44	4
45	1
46	4
47	5
48	1
49	6
50	2
51	6
52	4
53	6
54	5
55	5
56	7
57	2
58	3
59	4
60	6
61	5
62	5
63	7
64	2
65	3
66	8
67	1
68	4
69	3
70	6
71	7
72	5
73	5
74	3
75	5
76	7
77	6
78	3
79	1
80	1
81	7
82	8
83	7
84	7
85	4
86	5
87	8
88	5
89	9
90	6
91	6
92	8
93	7
94	7
95	6
96	8
97	9
98	9
99	3

[1, 1, 1, 1, 2, 2, 3, 2, 2, 3, 2, 2, 3, 2, 2, 3, 1, 3, 3, 1, 4, 1, 4, 3, 5, 5, 1, 4, 3, 4, 5, 4, 4, 5, 6, 6, 7, 4, 4, 5, 5, 6, 2, 4, 1, 4, 5, 1, 6, 2, 6, 4, 6, 5, 5, 7, 2, 3, 4, 6, 5, 5, 7, 2, 3, 8, 1, 4, 3, 6, 7, 5, 5, 3, 5, 7, 6, 3, 1, 1, 7, 8, 7, 7, 4, 5, 8, 5, 9, 6, 6, 8, 7, 7, 6, 8, 9, 9, 3]

cp's OEIS Frontend

A361486 Lexicographically earliest sequence of positive numbers on a square spiral such that no three equal numbers are collinear.

Table of values

List of values

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	2
7	3
8	2
9	2
10	3
11	2
12	2
13	3
14	2
15	2
16	3
17	1
18	3
19	3
20	1
21	4
22	1
23	4
24	3
25	5
26	5
27	1
28	4
29	3
30	4
31	5
32	4
33	4
34	5
35	6
36	6
37	7
38	4
39	4
40	5
41	5
42	6
43	2
44	4
45	1
46	4
47	5
48	1
49	6
50	2
51	6
52	4
53	6
54	5
55	5
56	7
57	2
58	3
59	4
60	6
61	5
62	5
63	7
64	2
65	3
66	8
67	1
68	4
69	3
70	6
71	7
72	5
73	5
74	3
75	5
76	7
77	6
78	3
79	1
80	1
81	7
82	8
83	7
84	7
85	4
86	5
87	8
88	5
89	9
90	6
91	6
92	8
93	7
94	7
95	6
96	8
97	9
98	9
99	3

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	2
7	3
8	2
9	2
10	3
11	2
12	2
13	3
14	2
15	2
16	3
17	1
18	3
19	3
20	1
21	4
22	1
23	4
24	3
25	5
26	5
27	1
28	4
29	3
30	4
31	5
32	4
33	4
34	5
35	6
36	6
37	7
38	4
39	4
40	5
41	5
42	6
43	2
44	4
45	1
46	4
47	5
48	1
49	6
50	2
51	6
52	4
53	6
54	5
55	5
56	7
57	2
58	3
59	4
60	6
61	5
62	5
63	7
64	2
65	3
66	8
67	1
68	4
69	3
70	6
71	7
72	5
73	5
74	3
75	5
76	7
77	6
78	3
79	1
80	1
81	7
82	8
83	7
84	7
85	4
86	5
87	8
88	5
89	9
90	6
91	6
92	8
93	7
94	7
95	6
96	8
97	9
98	9
99	3

n	a(n)
1	1
2	1
3	1
4	1
5	2
6	2
7	3
8	2
9	2
10	3
11	2
12	2
13	3
14	2
15	2
16	3
17	1
18	3
19	3
20	1
21	4
22	1
23	4
24	3
25	5
26	5
27	1
28	4
29	3
30	4
31	5
32	4
33	4
34	5
35	6
36	6
37	7
38	4
39	4
40	5
41	5
42	6
43	2
44	4
45	1
46	4
47	5
48	1
49	6
50	2
51	6
52	4
53	6
54	5
55	5
56	7
57	2
58	3
59	4
60	6
61	5
62	5
63	7
64	2
65	3
66	8
67	1
68	4
69	3
70	6
71	7
72	5
73	5
74	3
75	5
76	7
77	6
78	3
79	1
80	1
81	7
82	8
83	7
84	7
85	4
86	5
87	8
88	5
89	9
90	6
91	6
92	8
93	7
94	7
95	6
96	8
97	9
98	9
99	3