A270643 - cp's OEIS frontend

A270643 The sequence a of 1's and 2's starting with (1,2,2,1) such that a(n) is the length of the (n+3)rd run of a.

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

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

cp's OEIS Frontend

A270643 The sequence a of 1's and 2's starting with (1,2,2,1) such that a(n) is the length of the (n+3)rd run of a.

Table of values

List of values

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

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

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