A247513 - cp's OEIS frontend

A247513 Number of elements in the set {(x,y,z): 1<=x,y,z<=n, gcd(x,y,z)=1, lcm(x,y,z)=n}.

n	a(n)
1	1
2	6
3	6
4	12
5	6
6	36
7	6
8	18
9	12
10	36
11	6
12	72
13	6
14	36
15	36
16	24
17	6
18	72
19	6
20	72
21	36
22	36
23	6
24	108
25	12
26	36
27	18
28	72
29	6
30	216
31	6
32	30
33	36
34	36
35	36
36	144
37	6
38	36
39	36
40	108
41	6
42	216
43	6
44	72
45	72
46	36
47	6
48	144
49	12
50	72
51	36
52	72
53	6
54	108
55	36
56	108
57	36
58	36
59	6
60	432

[1, 6, 6, 12, 6, 36, 6, 18, 12, 36, 6, 72, 6, 36, 36, 24, 6, 72, 6, 72, 36, 36, 6, 108, 12, 36, 18, 72, 6, 216, 6, 30, 36, 36, 36, 144, 6, 36, 36, 108, 6, 216, 6, 72, 72, 36, 6, 144, 12, 72, 36, 72, 6, 108, 36, 108, 36, 36, 6, 432]

cp's OEIS Frontend

A247513 Number of elements in the set {(x,y,z): 1<=x,y,z<=n, gcd(x,y,z)=1, lcm(x,y,z)=n}.

Table of values

List of values

n	a(n)
1	1
2	6
3	6
4	12
5	6
6	36
7	6
8	18
9	12
10	36
11	6
12	72
13	6
14	36
15	36
16	24
17	6
18	72
19	6
20	72
21	36
22	36
23	6
24	108
25	12
26	36
27	18
28	72
29	6
30	216
31	6
32	30
33	36
34	36
35	36
36	144
37	6
38	36
39	36
40	108
41	6
42	216
43	6
44	72
45	72
46	36
47	6
48	144
49	12
50	72
51	36
52	72
53	6
54	108
55	36
56	108
57	36
58	36
59	6
60	432

n	a(n)
1	1
2	6
3	6
4	12
5	6
6	36
7	6
8	18
9	12
10	36
11	6
12	72
13	6
14	36
15	36
16	24
17	6
18	72
19	6
20	72
21	36
22	36
23	6
24	108
25	12
26	36
27	18
28	72
29	6
30	216
31	6
32	30
33	36
34	36
35	36
36	144
37	6
38	36
39	36
40	108
41	6
42	216
43	6
44	72
45	72
46	36
47	6
48	144
49	12
50	72
51	36
52	72
53	6
54	108
55	36
56	108
57	36
58	36
59	6
60	432

n	a(n)
1	1
2	6
3	6
4	12
5	6
6	36
7	6
8	18
9	12
10	36
11	6
12	72
13	6
14	36
15	36
16	24
17	6
18	72
19	6
20	72
21	36
22	36
23	6
24	108
25	12
26	36
27	18
28	72
29	6
30	216
31	6
32	30
33	36
34	36
35	36
36	144
37	6
38	36
39	36
40	108
41	6
42	216
43	6
44	72
45	72
46	36
47	6
48	144
49	12
50	72
51	36
52	72
53	6
54	108
55	36
56	108
57	36
58	36
59	6
60	432