A379954 - cp's OEIS frontend

A379954 Smallest positive k such that (n*k)^3/(n^3+k^3) is an integer, or 0 if no such k exists.

n	a(n)
1	0
2	2
3	6
4	4
5	0
6	3
7	0
8	8
9	18
10	10
11	0
12	6
13	0
14	14
15	30
16	16
17	0
18	9
19	0
20	20
21	42
22	22
23	0
24	12
25	0
26	26
27	54
28	28
29	0
30	15
31	0
32	32
33	66
34	34
35	0
36	18
37	0
38	38
39	78
40	40
41	0
42	14
43	0
44	44
45	90
46	46
47	0
48	24
49	0
50	50
51	102
52	52
53	0
54	27
55	0
56	56
57	114
58	58
59	0
60	30
61	0
62	62
63	126
64	64
65	260
66	33
67	0
68	68
69	138
70	70
71	0
72	36
73	0
74	74
75	150
76	76
77	0
78	39
79	0
80	80
81	162
82	82
83	0
84	28
85	0
86	86

[0, 2, 6, 4, 0, 3, 0, 8, 18, 10, 0, 6, 0, 14, 30, 16, 0, 9, 0, 20, 42, 22, 0, 12, 0, 26, 54, 28, 0, 15, 0, 32, 66, 34, 0, 18, 0, 38, 78, 40, 0, 14, 0, 44, 90, 46, 0, 24, 0, 50, 102, 52, 0, 27, 0, 56, 114, 58, 0, 30, 0, 62, 126, 64, 260, 33, 0, 68, 138, 70, 0, 36, 0, 74, 150, 76, 0, 39, 0, 80, 162, 82, 0, 28, 0, 86]

cp's OEIS Frontend

A379954 Smallest positive k such that (n*k)^3/(n^3+k^3) is an integer, or 0 if no such k exists.

Table of values

List of values

n	a(n)
1	0
2	2
3	6
4	4
5	0
6	3
7	0
8	8
9	18
10	10
11	0
12	6
13	0
14	14
15	30
16	16
17	0
18	9
19	0
20	20
21	42
22	22
23	0
24	12
25	0
26	26
27	54
28	28
29	0
30	15
31	0
32	32
33	66
34	34
35	0
36	18
37	0
38	38
39	78
40	40
41	0
42	14
43	0
44	44
45	90
46	46
47	0
48	24
49	0
50	50
51	102
52	52
53	0
54	27
55	0
56	56
57	114
58	58
59	0
60	30
61	0
62	62
63	126
64	64
65	260
66	33
67	0
68	68
69	138
70	70
71	0
72	36
73	0
74	74
75	150
76	76
77	0
78	39
79	0
80	80
81	162
82	82
83	0
84	28
85	0
86	86

n	a(n)
1	0
2	2
3	6
4	4
5	0
6	3
7	0
8	8
9	18
10	10
11	0
12	6
13	0
14	14
15	30
16	16
17	0
18	9
19	0
20	20
21	42
22	22
23	0
24	12
25	0
26	26
27	54
28	28
29	0
30	15
31	0
32	32
33	66
34	34
35	0
36	18
37	0
38	38
39	78
40	40
41	0
42	14
43	0
44	44
45	90
46	46
47	0
48	24
49	0
50	50
51	102
52	52
53	0
54	27
55	0
56	56
57	114
58	58
59	0
60	30
61	0
62	62
63	126
64	64
65	260
66	33
67	0
68	68
69	138
70	70
71	0
72	36
73	0
74	74
75	150
76	76
77	0
78	39
79	0
80	80
81	162
82	82
83	0
84	28
85	0
86	86

n	a(n)
1	0
2	2
3	6
4	4
5	0
6	3
7	0
8	8
9	18
10	10
11	0
12	6
13	0
14	14
15	30
16	16
17	0
18	9
19	0
20	20
21	42
22	22
23	0
24	12
25	0
26	26
27	54
28	28
29	0
30	15
31	0
32	32
33	66
34	34
35	0
36	18
37	0
38	38
39	78
40	40
41	0
42	14
43	0
44	44
45	90
46	46
47	0
48	24
49	0
50	50
51	102
52	52
53	0
54	27
55	0
56	56
57	114
58	58
59	0
60	30
61	0
62	62
63	126
64	64
65	260
66	33
67	0
68	68
69	138
70	70
71	0
72	36
73	0
74	74
75	150
76	76
77	0
78	39
79	0
80	80
81	162
82	82
83	0
84	28
85	0
86	86