A274917 - cp's OEIS frontend

A274917 Square spiral in which each new term is the least positive integer distinct from its (already assigned) eight neighbors.

n	a(n)
0	1
1	2
2	3
3	4
4	2
5	3
6	2
7	4
8	3
9	1
10	4
11	1
12	2
13	5
14	1
15	3
16	1
17	4
18	1
19	4
20	1
21	3
22	1
23	2
24	4
25	2
26	3
27	2
28	3
29	4
30	1
31	3
32	4
33	2
34	4
35	2
36	3
37	5
38	2
39	3
40	2
41	3
42	2
43	4
44	2
45	4
46	3
47	1
48	3
49	1
50	4
51	1
52	4
53	1
54	2
55	3
56	2
57	4
58	2
59	1
60	3
61	1
62	5
63	1
64	2
65	4
66	1
67	4
68	1
69	4
70	1
71	4
72	1
73	3
74	1
75	3
76	1
77	2
78	4
79	2
80	4
81	2
82	3
83	2
84	3
85	2
86	3
87	4
88	1
89	4
90	1
91	3
92	1
93	3
94	4
95	2
96	4
97	2
98	3
99	4
100	1
101	3
102	5
103	2
104	3

[1, 2, 3, 4, 2, 3, 2, 4, 3, 1, 4, 1, 2, 5, 1, 3, 1, 4, 1, 4, 1, 3, 1, 2, 4, 2, 3, 2, 3, 4, 1, 3, 4, 2, 4, 2, 3, 5, 2, 3, 2, 3, 2, 4, 2, 4, 3, 1, 3, 1, 4, 1, 4, 1, 2, 3, 2, 4, 2, 1, 3, 1, 5, 1, 2, 4, 1, 4, 1, 4, 1, 4, 1, 3, 1, 3, 1, 2, 4, 2, 4, 2, 3, 2, 3, 2, 3, 4, 1, 4, 1, 3, 1, 3, 4, 2, 4, 2, 3, 4, 1, 3, 5, 2, 3]

cp's OEIS Frontend

A274917 Square spiral in which each new term is the least positive integer distinct from its (already assigned) eight neighbors.

Table of values

List of values

n	a(n)
0	1
1	2
2	3
3	4
4	2
5	3
6	2
7	4
8	3
9	1
10	4
11	1
12	2
13	5
14	1
15	3
16	1
17	4
18	1
19	4
20	1
21	3
22	1
23	2
24	4
25	2
26	3
27	2
28	3
29	4
30	1
31	3
32	4
33	2
34	4
35	2
36	3
37	5
38	2
39	3
40	2
41	3
42	2
43	4
44	2
45	4
46	3
47	1
48	3
49	1
50	4
51	1
52	4
53	1
54	2
55	3
56	2
57	4
58	2
59	1
60	3
61	1
62	5
63	1
64	2
65	4
66	1
67	4
68	1
69	4
70	1
71	4
72	1
73	3
74	1
75	3
76	1
77	2
78	4
79	2
80	4
81	2
82	3
83	2
84	3
85	2
86	3
87	4
88	1
89	4
90	1
91	3
92	1
93	3
94	4
95	2
96	4
97	2
98	3
99	4
100	1
101	3
102	5
103	2
104	3

n	a(n)
0	1
1	2
2	3
3	4
4	2
5	3
6	2
7	4
8	3
9	1
10	4
11	1
12	2
13	5
14	1
15	3
16	1
17	4
18	1
19	4
20	1
21	3
22	1
23	2
24	4
25	2
26	3
27	2
28	3
29	4
30	1
31	3
32	4
33	2
34	4
35	2
36	3
37	5
38	2
39	3
40	2
41	3
42	2
43	4
44	2
45	4
46	3
47	1
48	3
49	1
50	4
51	1
52	4
53	1
54	2
55	3
56	2
57	4
58	2
59	1
60	3
61	1
62	5
63	1
64	2
65	4
66	1
67	4
68	1
69	4
70	1
71	4
72	1
73	3
74	1
75	3
76	1
77	2
78	4
79	2
80	4
81	2
82	3
83	2
84	3
85	2
86	3
87	4
88	1
89	4
90	1
91	3
92	1
93	3
94	4
95	2
96	4
97	2
98	3
99	4
100	1
101	3
102	5
103	2
104	3

n	a(n)
0	1
1	2
2	3
3	4
4	2
5	3
6	2
7	4
8	3
9	1
10	4
11	1
12	2
13	5
14	1
15	3
16	1
17	4
18	1
19	4
20	1
21	3
22	1
23	2
24	4
25	2
26	3
27	2
28	3
29	4
30	1
31	3
32	4
33	2
34	4
35	2
36	3
37	5
38	2
39	3
40	2
41	3
42	2
43	4
44	2
45	4
46	3
47	1
48	3
49	1
50	4
51	1
52	4
53	1
54	2
55	3
56	2
57	4
58	2
59	1
60	3
61	1
62	5
63	1
64	2
65	4
66	1
67	4
68	1
69	4
70	1
71	4
72	1
73	3
74	1
75	3
76	1
77	2
78	4
79	2
80	4
81	2
82	3
83	2
84	3
85	2
86	3
87	4
88	1
89	4
90	1
91	3
92	1
93	3
94	4
95	2
96	4
97	2
98	3
99	4
100	1
101	3
102	5
103	2
104	3