A063123 - cp's OEIS frontend

A063123 Number of solutions (r,s), 0< r< s, to the equation 1/n = 1/r + 1/s + 1/(r*s).

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

[1, 2, 3, 3, 4, 4, 4, 6, 6, 4, 6, 6, 4, 8, 10, 5, 6, 6, 6, 12, 8, 4, 8, 12, 6, 8, 12, 6, 8, 8, 6, 12, 8, 8, 18, 9, 4, 8, 16, 8, 8, 8, 6, 18, 12, 4, 10, 15, 9, 12, 12, 6, 8, 16, 16, 16, 8, 4, 12, 12, 4, 12, 21, 14, 16, 8, 6, 12, 16, 8, 12, 12, 4, 12, 18, 12, 16, 8, 10, 25, 10, 4, 12, 24, 8, 8]

cp's OEIS Frontend

A063123 Number of solutions (r,s), 0< r< s, to the equation 1/n = 1/r + 1/s + 1/(r*s).

Table of values

List of values

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

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

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