A025478 - cp's OEIS frontend

A025478 Least roots of perfect powers (A001597).

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

[1, 2, 2, 3, 2, 5, 3, 2, 6, 7, 2, 3, 10, 11, 5, 2, 12, 13, 14, 6, 15, 3, 2, 17, 18, 7, 19, 20, 21, 22, 2, 23, 24, 5, 26, 3, 28, 29, 30, 31, 10, 2, 33, 34, 35, 6, 11, 37, 38, 39, 40, 41, 12, 42, 43, 44, 45, 2, 46, 3, 13, 47, 48, 7, 50, 51, 52, 14, 53, 54, 55, 5, 56, 57, 58, 15, 59, 60, 61, 62]

cp's OEIS Frontend

A025478 Least roots of perfect powers (A001597).

Table of values

List of values

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

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

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