A348330 - cp's OEIS frontend

A348330 Lexicographically earliest sequence of positive integers such that for any n > 0, the sum of the indices k < n such that a(k) = a(n) is strictly less than n.

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

[1, 1, 2, 1, 2, 3, 3, 1, 2, 4, 4, 5, 5, 3, 6, 1, 6, 2, 7, 7, 8, 4, 8, 9, 9, 5, 10, 3, 10, 11, 11, 1, 6, 12, 12, 2, 13, 13, 14, 7, 14, 15, 15, 4, 8, 16, 16, 17, 17, 9, 18, 5, 18, 19, 19, 3, 10, 20, 20, 21, 21, 11, 22, 1, 22, 6, 23, 23, 24, 12, 24, 2, 25, 25, 26]

cp's OEIS Frontend

A348330 Lexicographically earliest sequence of positive integers such that for any n > 0, the sum of the indices k < n such that a(k) = a(n) is strictly less than n.

Table of values

List of values

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

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

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