A156257 - cp's OEIS frontend

A156257 Digit of runs of length 2 in the Kolakoski sequence A000002: a(n) = A000002(A078649(n)).

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

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

cp's OEIS Frontend

A156257 Digit of runs of length 2 in the Kolakoski sequence A000002: a(n) = A000002(A078649(n)).

Table of values

List of values

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

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

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