A243017 - cp's OEIS frontend

A243017 Least number k > 0 such that kn/(k+n) and kn/(k-n) are integers or 0 if no such k exists.

n	a(n)
1	0
2	0
3	6
4	12
5	0
6	3
7	0
8	24
9	18
10	15
11	0
12	4
13	0
14	0
15	10
16	48
17	0
18	9
19	0
20	30
21	28
22	0
23	0
24	8
25	0
26	0
27	54
28	21
29	0
30	15
31	0
32	96
33	66
34	0
35	210
36	12
37	0
38	0
39	78
40	24
41	0
42	21
43	0
44	132
45	30
46	0
47	0
48	16
49	0
50	75
51	102
52	156
53	0
54	27
55	66
56	42
57	114
58	0
59	0
60	12
61	0
62	0
63	84
64	192
65	0
66	33
67	0
68	204
69	138
70	105
71	0
72	24
73	0
74	0
75	50
76	228

[0, 0, 6, 12, 0, 3, 0, 24, 18, 15, 0, 4, 0, 0, 10, 48, 0, 9, 0, 30, 28, 0, 0, 8, 0, 0, 54, 21, 0, 15, 0, 96, 66, 0, 210, 12, 0, 0, 78, 24, 0, 21, 0, 132, 30, 0, 0, 16, 0, 75, 102, 156, 0, 27, 66, 42, 114, 0, 0, 12, 0, 0, 84, 192, 0, 33, 0, 204, 138, 105, 0, 24, 0, 0, 50, 228]

cp's OEIS Frontend

A243017 Least number k > 0 such that kn/(k+n) and kn/(k-n) are integers or 0 if no such k exists.

Table of values

List of values

n	a(n)
1	0
2	0
3	6
4	12
5	0
6	3
7	0
8	24
9	18
10	15
11	0
12	4
13	0
14	0
15	10
16	48
17	0
18	9
19	0
20	30
21	28
22	0
23	0
24	8
25	0
26	0
27	54
28	21
29	0
30	15
31	0
32	96
33	66
34	0
35	210
36	12
37	0
38	0
39	78
40	24
41	0
42	21
43	0
44	132
45	30
46	0
47	0
48	16
49	0
50	75
51	102
52	156
53	0
54	27
55	66
56	42
57	114
58	0
59	0
60	12
61	0
62	0
63	84
64	192
65	0
66	33
67	0
68	204
69	138
70	105
71	0
72	24
73	0
74	0
75	50
76	228

n	a(n)
1	0
2	0
3	6
4	12
5	0
6	3
7	0
8	24
9	18
10	15
11	0
12	4
13	0
14	0
15	10
16	48
17	0
18	9
19	0
20	30
21	28
22	0
23	0
24	8
25	0
26	0
27	54
28	21
29	0
30	15
31	0
32	96
33	66
34	0
35	210
36	12
37	0
38	0
39	78
40	24
41	0
42	21
43	0
44	132
45	30
46	0
47	0
48	16
49	0
50	75
51	102
52	156
53	0
54	27
55	66
56	42
57	114
58	0
59	0
60	12
61	0
62	0
63	84
64	192
65	0
66	33
67	0
68	204
69	138
70	105
71	0
72	24
73	0
74	0
75	50
76	228

cp's OEIS Frontend

A243017 Least number k > 0 such that k*n/(k+n) and k*n/(k-n) are integers or 0 if no such k exists.

Table of values

List of values

A243017 Least number k > 0 such that kn/(k+n) and kn/(k-n) are integers or 0 if no such k exists.

n	a(n)
1	0
2	0
3	6
4	12
5	0
6	3
7	0
8	24
9	18
10	15
11	0
12	4
13	0
14	0
15	10
16	48
17	0
18	9
19	0
20	30
21	28
22	0
23	0
24	8
25	0
26	0
27	54
28	21
29	0
30	15
31	0
32	96
33	66
34	0
35	210
36	12
37	0
38	0
39	78
40	24
41	0
42	21
43	0
44	132
45	30
46	0
47	0
48	16
49	0
50	75
51	102
52	156
53	0
54	27
55	66
56	42
57	114
58	0
59	0
60	12
61	0
62	0
63	84
64	192
65	0
66	33
67	0
68	204
69	138
70	105
71	0
72	24
73	0
74	0
75	50
76	228