A117181 - cp's OEIS frontend

A117181 Highest prime-power dividing the n-th nonsquarefree positive integer.

n	a(n)
1	4
2	8
3	9
4	4
5	16
6	9
7	5
8	8
9	25
10	27
11	7
12	32
13	9
14	8
15	11
16	9
17	16
18	49
19	25
20	13
21	27
22	8
23	5
24	9
25	64
26	17
27	9
28	25
29	19
30	16
31	81
32	7
33	11
34	9
35	23
36	32
37	49
38	11
39	25
40	13
41	27
42	16
43	29
44	13
45	8
46	121
47	31
48	125
49	9
50	128
51	11
52	27
53	17
54	7
55	16
56	49
57	37
58	25
59	19
60	17
61	13
62	32
63	81
64	41
65	8
66	169
67	19
68	43
69	25
70	16
71	9
72	23
73	47
74	27
75	64
76	49

[4, 8, 9, 4, 16, 9, 5, 8, 25, 27, 7, 32, 9, 8, 11, 9, 16, 49, 25, 13, 27, 8, 5, 9, 64, 17, 9, 25, 19, 16, 81, 7, 11, 9, 23, 32, 49, 11, 25, 13, 27, 16, 29, 13, 8, 121, 31, 125, 9, 128, 11, 27, 17, 7, 16, 49, 37, 25, 19, 17, 13, 32, 81, 41, 8, 169, 19, 43, 25, 16, 9, 23, 47, 27, 64, 49]

cp's OEIS Frontend

A117181 Highest prime-power dividing the n-th nonsquarefree positive integer.

Table of values

List of values

n	a(n)
1	4
2	8
3	9
4	4
5	16
6	9
7	5
8	8
9	25
10	27
11	7
12	32
13	9
14	8
15	11
16	9
17	16
18	49
19	25
20	13
21	27
22	8
23	5
24	9
25	64
26	17
27	9
28	25
29	19
30	16
31	81
32	7
33	11
34	9
35	23
36	32
37	49
38	11
39	25
40	13
41	27
42	16
43	29
44	13
45	8
46	121
47	31
48	125
49	9
50	128
51	11
52	27
53	17
54	7
55	16
56	49
57	37
58	25
59	19
60	17
61	13
62	32
63	81
64	41
65	8
66	169
67	19
68	43
69	25
70	16
71	9
72	23
73	47
74	27
75	64
76	49

n	a(n)
1	4
2	8
3	9
4	4
5	16
6	9
7	5
8	8
9	25
10	27
11	7
12	32
13	9
14	8
15	11
16	9
17	16
18	49
19	25
20	13
21	27
22	8
23	5
24	9
25	64
26	17
27	9
28	25
29	19
30	16
31	81
32	7
33	11
34	9
35	23
36	32
37	49
38	11
39	25
40	13
41	27
42	16
43	29
44	13
45	8
46	121
47	31
48	125
49	9
50	128
51	11
52	27
53	17
54	7
55	16
56	49
57	37
58	25
59	19
60	17
61	13
62	32
63	81
64	41
65	8
66	169
67	19
68	43
69	25
70	16
71	9
72	23
73	47
74	27
75	64
76	49

n	a(n)
1	4
2	8
3	9
4	4
5	16
6	9
7	5
8	8
9	25
10	27
11	7
12	32
13	9
14	8
15	11
16	9
17	16
18	49
19	25
20	13
21	27
22	8
23	5
24	9
25	64
26	17
27	9
28	25
29	19
30	16
31	81
32	7
33	11
34	9
35	23
36	32
37	49
38	11
39	25
40	13
41	27
42	16
43	29
44	13
45	8
46	121
47	31
48	125
49	9
50	128
51	11
52	27
53	17
54	7
55	16
56	49
57	37
58	25
59	19
60	17
61	13
62	32
63	81
64	41
65	8
66	169
67	19
68	43
69	25
70	16
71	9
72	23
73	47
74	27
75	64
76	49