A089384 - cp's OEIS frontend

A089384 Greatest squarefree proper divisor of n, a(1) = 1.

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

[1, 1, 1, 2, 1, 3, 1, 2, 3, 5, 1, 6, 1, 7, 5, 2, 1, 6, 1, 10, 7, 11, 1, 6, 5, 13, 3, 14, 1, 15, 1, 2, 11, 17, 7, 6, 1, 19, 13, 10, 1, 21, 1, 22, 15, 23, 1, 6, 7, 10, 17, 26, 1, 6, 11, 14, 19, 29, 1, 30, 1, 31, 21, 2, 13, 33, 1, 34, 23, 35, 1, 6, 1, 37, 15, 38, 11, 39, 1, 10, 3, 41, 1, 42]

cp's OEIS Frontend

A089384 Greatest squarefree proper divisor of n, a(1) = 1.

Table of values

List of values

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

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

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