A366601 - cp's OEIS frontend

A366601 a(0) = 0. For a(n-1) a novel term a(n) = a(A025480(a(n-1))), and if a(n-1) has occurred k (>1) times, a(n) = k-1 (the number of repetitions of a(n-1) in all prior terms).

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

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

cp's OEIS Frontend

A366601 a(0) = 0. For a(n-1) a novel term a(n) = a(A025480(a(n-1))), and if a(n-1) has occurred k (>1) times, a(n) = k-1 (the number of repetitions of a(n-1) in all prior terms).

Table of values

List of values

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

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

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