A274921 - cp's OEIS frontend

A274921 Spiral constructed on the nodes of the triangular net in which each new term is the least positive integer distinct from its neighbors.

n	a(n)
0	1
1	2
2	3
3	2
4	3
5	2
6	3
7	1
8	3
9	1
10	2
11	1
12	3
13	1
14	2
15	1
16	3
17	1
18	2
19	3
20	2
21	1
22	2
23	3
24	1
25	3
26	2
27	1
28	2
29	3
30	1
31	3
32	2
33	1
34	2
35	3
36	1
37	2
38	1
39	3
40	2
41	3
42	1
43	2
44	3
45	2
46	1
47	3
48	2
49	3
50	1
51	2
52	3
53	2
54	1
55	3
56	2
57	3
58	1
59	2
60	3
61	1
62	3
63	2
64	1
65	3
66	1
67	2
68	3
69	1
70	2
71	1
72	3
73	2
74	1
75	3
76	1
77	2
78	3
79	1
80	2
81	1
82	3
83	2
84	1
85	3
86	1
87	2
88	3
89	1
90	2
91	3
92	2
93	1
94	3
95	2
96	1
97	2
98	3
99	1
100	2
101	3
102	1
103	3
104	2
105	1

[1, 2, 3, 2, 3, 2, 3, 1, 3, 1, 2, 1, 3, 1, 2, 1, 3, 1, 2, 3, 2, 1, 2, 3, 1, 3, 2, 1, 2, 3, 1, 3, 2, 1, 2, 3, 1, 2, 1, 3, 2, 3, 1, 2, 3, 2, 1, 3, 2, 3, 1, 2, 3, 2, 1, 3, 2, 3, 1, 2, 3, 1, 3, 2, 1, 3, 1, 2, 3, 1, 2, 1, 3, 2, 1, 3, 1, 2, 3, 1, 2, 1, 3, 2, 1, 3, 1, 2, 3, 1, 2, 3, 2, 1, 3, 2, 1, 2, 3, 1, 2, 3, 1, 3, 2, 1]

cp's OEIS Frontend

A274921 Spiral constructed on the nodes of the triangular net in which each new term is the least positive integer distinct from its neighbors.

Table of values

List of values

n	a(n)
0	1
1	2
2	3
3	2
4	3
5	2
6	3
7	1
8	3
9	1
10	2
11	1
12	3
13	1
14	2
15	1
16	3
17	1
18	2
19	3
20	2
21	1
22	2
23	3
24	1
25	3
26	2
27	1
28	2
29	3
30	1
31	3
32	2
33	1
34	2
35	3
36	1
37	2
38	1
39	3
40	2
41	3
42	1
43	2
44	3
45	2
46	1
47	3
48	2
49	3
50	1
51	2
52	3
53	2
54	1
55	3
56	2
57	3
58	1
59	2
60	3
61	1
62	3
63	2
64	1
65	3
66	1
67	2
68	3
69	1
70	2
71	1
72	3
73	2
74	1
75	3
76	1
77	2
78	3
79	1
80	2
81	1
82	3
83	2
84	1
85	3
86	1
87	2
88	3
89	1
90	2
91	3
92	2
93	1
94	3
95	2
96	1
97	2
98	3
99	1
100	2
101	3
102	1
103	3
104	2
105	1

n	a(n)
0	1
1	2
2	3
3	2
4	3
5	2
6	3
7	1
8	3
9	1
10	2
11	1
12	3
13	1
14	2
15	1
16	3
17	1
18	2
19	3
20	2
21	1
22	2
23	3
24	1
25	3
26	2
27	1
28	2
29	3
30	1
31	3
32	2
33	1
34	2
35	3
36	1
37	2
38	1
39	3
40	2
41	3
42	1
43	2
44	3
45	2
46	1
47	3
48	2
49	3
50	1
51	2
52	3
53	2
54	1
55	3
56	2
57	3
58	1
59	2
60	3
61	1
62	3
63	2
64	1
65	3
66	1
67	2
68	3
69	1
70	2
71	1
72	3
73	2
74	1
75	3
76	1
77	2
78	3
79	1
80	2
81	1
82	3
83	2
84	1
85	3
86	1
87	2
88	3
89	1
90	2
91	3
92	2
93	1
94	3
95	2
96	1
97	2
98	3
99	1
100	2
101	3
102	1
103	3
104	2
105	1

n	a(n)
0	1
1	2
2	3
3	2
4	3
5	2
6	3
7	1
8	3
9	1
10	2
11	1
12	3
13	1
14	2
15	1
16	3
17	1
18	2
19	3
20	2
21	1
22	2
23	3
24	1
25	3
26	2
27	1
28	2
29	3
30	1
31	3
32	2
33	1
34	2
35	3
36	1
37	2
38	1
39	3
40	2
41	3
42	1
43	2
44	3
45	2
46	1
47	3
48	2
49	3
50	1
51	2
52	3
53	2
54	1
55	3
56	2
57	3
58	1
59	2
60	3
61	1
62	3
63	2
64	1
65	3
66	1
67	2
68	3
69	1
70	2
71	1
72	3
73	2
74	1
75	3
76	1
77	2
78	3
79	1
80	2
81	1
82	3
83	2
84	1
85	3
86	1
87	2
88	3
89	1
90	2
91	3
92	2
93	1
94	3
95	2
96	1
97	2
98	3
99	1
100	2
101	3
102	1
103	3
104	2
105	1