A342165 - cp's OEIS frontend

A342165 A fractal-like sequence: erase the terms that have a prime index, the non-erased terms rebuild the original sequence.

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

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

cp's OEIS Frontend

A342165 A fractal-like sequence: erase the terms that have a prime index, the non-erased terms rebuild the original sequence.

Table of values

List of values

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

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

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