A375931 - cp's OEIS frontend

A375931 The product of the prime powers in the prime factorization of n that have an exponent that is equal to the maximum exponent in this factorization.

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

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 4, 13, 14, 15, 16, 17, 9, 19, 4, 21, 22, 23, 8, 25, 26, 27, 4, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 8, 41, 42, 43, 4, 9, 46, 47, 16, 49, 25, 51, 4, 53, 27, 55, 8, 57, 58, 59, 4, 61, 62, 9, 64, 65, 66, 67, 4, 69, 70, 71]

cp's OEIS Frontend

A375931 The product of the prime powers in the prime factorization of n that have an exponent that is equal to the maximum exponent in this factorization.

Table of values

List of values

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

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

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