A348968 - cp's OEIS frontend

A348968 a(n) = gcd(n, A099377(n)), where A099377(n) is the numerator of the harmonic mean of the divisors of n.

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

[1, 2, 3, 4, 5, 2, 7, 8, 9, 10, 11, 6, 13, 7, 5, 16, 17, 18, 19, 20, 21, 22, 23, 8, 25, 26, 27, 1, 29, 10, 31, 32, 11, 34, 35, 36, 37, 38, 39, 8, 41, 7, 43, 22, 45, 23, 47, 24, 49, 50, 17, 52, 53, 18, 55, 56, 57, 58, 59, 30, 61, 31, 63, 64, 65, 11, 67, 68, 23, 35, 71, 72, 73, 74, 75, 38, 77, 26, 79, 80, 81, 82, 83, 3]

cp's OEIS Frontend

A348968 a(n) = gcd(n, A099377(n)), where A099377(n) is the numerator of the harmonic mean of the divisors of n.

Table of values

List of values

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

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

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