A070956 - cp's OEIS frontend

A070956 Number of pairs (x,y) such that n = gcd(x,y) + lcm(x,y).

n	a(n)
1	0
2	1
3	1
4	2
5	1
6	3
7	2
8	3
9	2
10	3
11	2
12	5
13	2
14	4
15	4
16	5
17	1
18	5
19	2
20	5
21	5
22	5
23	2
24	7
25	3
26	4
27	4
28	6
29	2
30	8
31	4
32	6
33	4
34	4
35	5
36	9
37	2
38	4
39	5
40	8
41	2
42	9
43	4
44	7
45	7
46	5
47	2
48	10
49	4
50	6
51	4
52	7
53	2
54	8
55	5
56	9
57	5
58	5
59	2
60	12
61	4
62	6
63	8
64	8
65	4
66	10
67	4
68	6
69	5
70	10
71	4
72	12
73	2
74	4
75	8
76	7
77	6
78	10
79	4
80	11
81	6
82	4
83	2
84	13
85	6
86	7
87	5
88	10
89	2
90	13
91	8
92	8
93	7
94	5
95	5
96	13
97	2
98	7
99	7

[0, 1, 1, 2, 1, 3, 2, 3, 2, 3, 2, 5, 2, 4, 4, 5, 1, 5, 2, 5, 5, 5, 2, 7, 3, 4, 4, 6, 2, 8, 4, 6, 4, 4, 5, 9, 2, 4, 5, 8, 2, 9, 4, 7, 7, 5, 2, 10, 4, 6, 4, 7, 2, 8, 5, 9, 5, 5, 2, 12, 4, 6, 8, 8, 4, 10, 4, 6, 5, 10, 4, 12, 2, 4, 8, 7, 6, 10, 4, 11, 6, 4, 2, 13, 6, 7, 5, 10, 2, 13, 8, 8, 7, 5, 5, 13, 2, 7, 7]

cp's OEIS Frontend

A070956 Number of pairs (x,y) such that n = gcd(x,y) + lcm(x,y).

Table of values

List of values

n	a(n)
1	0
2	1
3	1
4	2
5	1
6	3
7	2
8	3
9	2
10	3
11	2
12	5
13	2
14	4
15	4
16	5
17	1
18	5
19	2
20	5
21	5
22	5
23	2
24	7
25	3
26	4
27	4
28	6
29	2
30	8
31	4
32	6
33	4
34	4
35	5
36	9
37	2
38	4
39	5
40	8
41	2
42	9
43	4
44	7
45	7
46	5
47	2
48	10
49	4
50	6
51	4
52	7
53	2
54	8
55	5
56	9
57	5
58	5
59	2
60	12
61	4
62	6
63	8
64	8
65	4
66	10
67	4
68	6
69	5
70	10
71	4
72	12
73	2
74	4
75	8
76	7
77	6
78	10
79	4
80	11
81	6
82	4
83	2
84	13
85	6
86	7
87	5
88	10
89	2
90	13
91	8
92	8
93	7
94	5
95	5
96	13
97	2
98	7
99	7

n	a(n)
1	0
2	1
3	1
4	2
5	1
6	3
7	2
8	3
9	2
10	3
11	2
12	5
13	2
14	4
15	4
16	5
17	1
18	5
19	2
20	5
21	5
22	5
23	2
24	7
25	3
26	4
27	4
28	6
29	2
30	8
31	4
32	6
33	4
34	4
35	5
36	9
37	2
38	4
39	5
40	8
41	2
42	9
43	4
44	7
45	7
46	5
47	2
48	10
49	4
50	6
51	4
52	7
53	2
54	8
55	5
56	9
57	5
58	5
59	2
60	12
61	4
62	6
63	8
64	8
65	4
66	10
67	4
68	6
69	5
70	10
71	4
72	12
73	2
74	4
75	8
76	7
77	6
78	10
79	4
80	11
81	6
82	4
83	2
84	13
85	6
86	7
87	5
88	10
89	2
90	13
91	8
92	8
93	7
94	5
95	5
96	13
97	2
98	7
99	7

n	a(n)
1	0
2	1
3	1
4	2
5	1
6	3
7	2
8	3
9	2
10	3
11	2
12	5
13	2
14	4
15	4
16	5
17	1
18	5
19	2
20	5
21	5
22	5
23	2
24	7
25	3
26	4
27	4
28	6
29	2
30	8
31	4
32	6
33	4
34	4
35	5
36	9
37	2
38	4
39	5
40	8
41	2
42	9
43	4
44	7
45	7
46	5
47	2
48	10
49	4
50	6
51	4
52	7
53	2
54	8
55	5
56	9
57	5
58	5
59	2
60	12
61	4
62	6
63	8
64	8
65	4
66	10
67	4
68	6
69	5
70	10
71	4
72	12
73	2
74	4
75	8
76	7
77	6
78	10
79	4
80	11
81	6
82	4
83	2
84	13
85	6
86	7
87	5
88	10
89	2
90	13
91	8
92	8
93	7
94	5
95	5
96	13
97	2
98	7
99	7