A380107 - cp's OEIS frontend

A380107 a(1) = 0; for n >= 1, if there exists an m < n such that a(m) = a(n), take the largest such m and let a(n+1) be the number of distinct runs in the subsequence a(m)..a(n-1). Otherwise, a(n+1) = 0.

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

[0, 0, 1, 0, 2, 0, 2, 2, 1, 4, 0, 4, 2, 4, 2, 2, 1, 5, 0, 6, 0, 2, 5, 4, 7, 0, 5, 4, 4, 1, 8, 0, 5, 5, 1, 4, 5, 3, 0, 6, 11, 0, 3, 4, 6, 5, 6, 2, 12, 0, 7, 13, 0, 3, 9, 0, 3, 3, 1, 13, 6, 10, 0, 6, 3, 6, 2, 11, 14, 0, 6, 5, 14, 4, 15, 0, 6, 6, 1, 13, 13, 1, 2, 11, 11]

cp's OEIS Frontend

A380107 a(1) = 0; for n >= 1, if there exists an m < n such that a(m) = a(n), take the largest such m and let a(n+1) be the number of distinct runs in the subsequence a(m)..a(n-1). Otherwise, a(n+1) = 0.

Table of values

List of values

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

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

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