A361101 - cp's OEIS frontend

A361101 a(n) is the smallest positive number not among the terms in a(1..n-1) with index a(n-1)*k for any integer k; a(1)=1.

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

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

cp's OEIS Frontend

A361101 a(n) is the smallest positive number not among the terms in a(1..n-1) with index a(n-1)*k for any integer k; a(1)=1.

Table of values

List of values

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

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

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