A063428 - cp's OEIS frontend

A063428 a(n) is the smallest positive integer of the form n*k/(n+k).

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

[1, 2, 2, 4, 2, 6, 4, 6, 5, 10, 3, 12, 7, 6, 8, 16, 6, 18, 4, 12, 11, 22, 6, 20, 13, 18, 12, 28, 5, 30, 16, 22, 17, 10, 9, 36, 19, 26, 8, 40, 6, 42, 22, 18, 23, 46, 12, 42, 25, 34, 26, 52, 18, 30, 7, 38, 29, 58, 10, 60, 31, 14, 32, 40, 22, 66, 34, 46, 20, 70, 8, 72, 37, 30, 38, 28, 26]

cp's OEIS Frontend

A063428 a(n) is the smallest positive integer of the form n*k/(n+k).

Table of values

List of values

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

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

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