A352834 - cp's OEIS frontend

A352834 Least k > 0 such that denominator( d(kn)/(kn) ) = n, or 0 if no such k exists, where d = A000005 is the number-of-divisors function.

n	a(n)
1	1
2	4
3	1
4	1
5	1
6	12
7	1
8	10
9	12
10	2
11	1
12	20
13	1
14	2
15	1
16	1
17	1
18	0
19	1
20	24
21	1
22	2
23	1
24	2
25	1
26	2
27	1
28	20
29	1
30	0
31	1
32	14
33	1
34	2
35	1
36	24
37	1
38	2
39	1
40	4
41	1
42	40
43	1
44	20
45	12
46	2
47	1
48	3
49	1
50	4
51	1
52	20
53	1
54	18
55	1
56	2
57	1
58	2
59	1
60	32
61	1
62	2
63	12
64	1
65	1
66	40
67	1
68	20
69	1
70	48
71	1
72	0
73	1
74	2
75	36
76	20
77	1
78	40
79	1
80	5
81	1
82	2
83	1
84	4
85	1
86	2
87	1
88	2
89	1
90	48

[1, 4, 1, 1, 1, 12, 1, 10, 12, 2, 1, 20, 1, 2, 1, 1, 1, 0, 1, 24, 1, 2, 1, 2, 1, 2, 1, 20, 1, 0, 1, 14, 1, 2, 1, 24, 1, 2, 1, 4, 1, 40, 1, 20, 12, 2, 1, 3, 1, 4, 1, 20, 1, 18, 1, 2, 1, 2, 1, 32, 1, 2, 12, 1, 1, 40, 1, 20, 1, 48, 1, 0, 1, 2, 36, 20, 1, 40, 1, 5, 1, 2, 1, 4, 1, 2, 1, 2, 1, 48]

cp's OEIS Frontend

A352834 Least k > 0 such that denominator( d(kn)/(kn) ) = n, or 0 if no such k exists, where d = A000005 is the number-of-divisors function.

Table of values

List of values

n	a(n)
1	1
2	4
3	1
4	1
5	1
6	12
7	1
8	10
9	12
10	2
11	1
12	20
13	1
14	2
15	1
16	1
17	1
18	0
19	1
20	24
21	1
22	2
23	1
24	2
25	1
26	2
27	1
28	20
29	1
30	0
31	1
32	14
33	1
34	2
35	1
36	24
37	1
38	2
39	1
40	4
41	1
42	40
43	1
44	20
45	12
46	2
47	1
48	3
49	1
50	4
51	1
52	20
53	1
54	18
55	1
56	2
57	1
58	2
59	1
60	32
61	1
62	2
63	12
64	1
65	1
66	40
67	1
68	20
69	1
70	48
71	1
72	0
73	1
74	2
75	36
76	20
77	1
78	40
79	1
80	5
81	1
82	2
83	1
84	4
85	1
86	2
87	1
88	2
89	1
90	48

n	a(n)
1	1
2	4
3	1
4	1
5	1
6	12
7	1
8	10
9	12
10	2
11	1
12	20
13	1
14	2
15	1
16	1
17	1
18	0
19	1
20	24
21	1
22	2
23	1
24	2
25	1
26	2
27	1
28	20
29	1
30	0
31	1
32	14
33	1
34	2
35	1
36	24
37	1
38	2
39	1
40	4
41	1
42	40
43	1
44	20
45	12
46	2
47	1
48	3
49	1
50	4
51	1
52	20
53	1
54	18
55	1
56	2
57	1
58	2
59	1
60	32
61	1
62	2
63	12
64	1
65	1
66	40
67	1
68	20
69	1
70	48
71	1
72	0
73	1
74	2
75	36
76	20
77	1
78	40
79	1
80	5
81	1
82	2
83	1
84	4
85	1
86	2
87	1
88	2
89	1
90	48

cp's OEIS Frontend

A352834 Least k > 0 such that denominator( d(k*n)/(k*n) ) = n, or 0 if no such k exists, where d = A000005 is the number-of-divisors function.

Table of values

List of values

A352834 Least k > 0 such that denominator( d(kn)/(kn) ) = n, or 0 if no such k exists, where d = A000005 is the number-of-divisors function.

n	a(n)
1	1
2	4
3	1
4	1
5	1
6	12
7	1
8	10
9	12
10	2
11	1
12	20
13	1
14	2
15	1
16	1
17	1
18	0
19	1
20	24
21	1
22	2
23	1
24	2
25	1
26	2
27	1
28	20
29	1
30	0
31	1
32	14
33	1
34	2
35	1
36	24
37	1
38	2
39	1
40	4
41	1
42	40
43	1
44	20
45	12
46	2
47	1
48	3
49	1
50	4
51	1
52	20
53	1
54	18
55	1
56	2
57	1
58	2
59	1
60	32
61	1
62	2
63	12
64	1
65	1
66	40
67	1
68	20
69	1
70	48
71	1
72	0
73	1
74	2
75	36
76	20
77	1
78	40
79	1
80	5
81	1
82	2
83	1
84	4
85	1
86	2
87	1
88	2
89	1
90	48