A211515 - cp's OEIS frontend

A211515 Number of ordered triples (w,x,y) with all terms in {1,...,n} and w^3=x*y.

n	a(n)
0	0
1	1
2	1
3	1
4	3
5	3
6	3
7	3
8	6
9	8
10	8
11	8
12	8
13	8
14	8
15	8
16	10
17	10
18	12
19	12
20	12
21	12
22	12
23	12
24	14
25	16
26	16
27	21
28	21
29	21
30	21
31	21
32	25
33	25
34	25
35	25
36	27
37	27
38	27
39	27
40	29
41	29
42	29
43	29
44	29
45	29
46	29
47	29
48	31
49	33
50	35
51	35
52	35
53	35
54	39
55	39
56	41
57	41
58	41
59	41
60	41
61	41
62	41
63	41
64	48
65	48
66	48
67	48
68	48
69	48
70	48

[0, 1, 1, 1, 3, 3, 3, 3, 6, 8, 8, 8, 8, 8, 8, 8, 10, 10, 12, 12, 12, 12, 12, 12, 14, 16, 16, 21, 21, 21, 21, 21, 25, 25, 25, 25, 27, 27, 27, 27, 29, 29, 29, 29, 29, 29, 29, 29, 31, 33, 35, 35, 35, 35, 39, 39, 41, 41, 41, 41, 41, 41, 41, 41, 48, 48, 48, 48, 48, 48, 48]

cp's OEIS Frontend

A211515 Number of ordered triples (w,x,y) with all terms in {1,...,n} and w^3=x*y.

Table of values

List of values

n	a(n)
0	0
1	1
2	1
3	1
4	3
5	3
6	3
7	3
8	6
9	8
10	8
11	8
12	8
13	8
14	8
15	8
16	10
17	10
18	12
19	12
20	12
21	12
22	12
23	12
24	14
25	16
26	16
27	21
28	21
29	21
30	21
31	21
32	25
33	25
34	25
35	25
36	27
37	27
38	27
39	27
40	29
41	29
42	29
43	29
44	29
45	29
46	29
47	29
48	31
49	33
50	35
51	35
52	35
53	35
54	39
55	39
56	41
57	41
58	41
59	41
60	41
61	41
62	41
63	41
64	48
65	48
66	48
67	48
68	48
69	48
70	48

n	a(n)
0	0
1	1
2	1
3	1
4	3
5	3
6	3
7	3
8	6
9	8
10	8
11	8
12	8
13	8
14	8
15	8
16	10
17	10
18	12
19	12
20	12
21	12
22	12
23	12
24	14
25	16
26	16
27	21
28	21
29	21
30	21
31	21
32	25
33	25
34	25
35	25
36	27
37	27
38	27
39	27
40	29
41	29
42	29
43	29
44	29
45	29
46	29
47	29
48	31
49	33
50	35
51	35
52	35
53	35
54	39
55	39
56	41
57	41
58	41
59	41
60	41
61	41
62	41
63	41
64	48
65	48
66	48
67	48
68	48
69	48
70	48

n	a(n)
0	0
1	1
2	1
3	1
4	3
5	3
6	3
7	3
8	6
9	8
10	8
11	8
12	8
13	8
14	8
15	8
16	10
17	10
18	12
19	12
20	12
21	12
22	12
23	12
24	14
25	16
26	16
27	21
28	21
29	21
30	21
31	21
32	25
33	25
34	25
35	25
36	27
37	27
38	27
39	27
40	29
41	29
42	29
43	29
44	29
45	29
46	29
47	29
48	31
49	33
50	35
51	35
52	35
53	35
54	39
55	39
56	41
57	41
58	41
59	41
60	41
61	41
62	41
63	41
64	48
65	48
66	48
67	48
68	48
69	48
70	48