A358405 - cp's OEIS frontend

A358405 a(1) = 0; for n > 1, let a(n-1) = m; if a(n-1) is the first occurrence of m then a(n) = 0, but if there is a k < n-1 with a(k) = m, a(n) is the maximum of n-1-k and j, where a(j) is the first occurrence of m in the sequence.

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

[0, 0, 1, 0, 2, 0, 2, 5, 0, 3, 0, 2, 5, 8, 0, 4, 0, 2, 6, 0, 3, 11, 0, 3, 10, 0, 3, 10, 25, 0, 4, 16, 0, 3, 10, 25, 29, 0, 5, 26, 0, 3, 10, 25, 29, 37, 0, 6, 29, 37, 46, 0, 5, 14, 0, 3, 14, 54, 0, 4, 29, 37, 46, 51, 0, 6, 19, 0, 3, 13, 0, 3, 10, 30, 0, 4, 16, 45, 0, 4, 16, 32, 0, 4, 16, 32, 82]

cp's OEIS Frontend

A358405 a(1) = 0; for n > 1, let a(n-1) = m; if a(n-1) is the first occurrence of m then a(n) = 0, but if there is a k < n-1 with a(k) = m, a(n) is the maximum of n-1-k and j, where a(j) is the first occurrence of m in the sequence.

Table of values

List of values

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

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

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