A129308 - cp's OEIS frontend

A129308 a(n) is the number of positive integers k such that k*(k+1) divides n.

n	a(n)
1	0
2	1
3	0
4	1
5	0
6	2
7	0
8	1
9	0
10	1
11	0
12	3
13	0
14	1
15	0
16	1
17	0
18	2
19	0
20	2
21	0
22	1
23	0
24	3
25	0
26	1
27	0
28	1
29	0
30	3
31	0
32	1
33	0
34	1
35	0
36	3
37	0
38	1
39	0
40	2
41	0
42	3
43	0
44	1
45	0
46	1
47	0
48	3
49	0
50	1
51	0
52	1
53	0
54	2
55	0
56	2
57	0
58	1
59	0
60	5
61	0
62	1
63	0
64	1
65	0
66	2
67	0
68	1
69	0
70	1
71	0
72	4
73	0
74	1
75	0
76	1
77	0
78	2
79	0
80	2
81	0
82	1
83	0
84	4
85	0
86	1
87	0
88	1
89	0
90	4
91	0
92	1
93	0
94	1
95	0
96	3
97	0
98	1
99	0
100	2
101	0
102	2
103	0
104	1
105	0

[0, 1, 0, 1, 0, 2, 0, 1, 0, 1, 0, 3, 0, 1, 0, 1, 0, 2, 0, 2, 0, 1, 0, 3, 0, 1, 0, 1, 0, 3, 0, 1, 0, 1, 0, 3, 0, 1, 0, 2, 0, 3, 0, 1, 0, 1, 0, 3, 0, 1, 0, 1, 0, 2, 0, 2, 0, 1, 0, 5, 0, 1, 0, 1, 0, 2, 0, 1, 0, 1, 0, 4, 0, 1, 0, 1, 0, 2, 0, 2, 0, 1, 0, 4, 0, 1, 0, 1, 0, 4, 0, 1, 0, 1, 0, 3, 0, 1, 0, 2, 0, 2, 0, 1, 0]

cp's OEIS Frontend

A129308 a(n) is the number of positive integers k such that k*(k+1) divides n.

Table of values

List of values

n	a(n)
1	0
2	1
3	0
4	1
5	0
6	2
7	0
8	1
9	0
10	1
11	0
12	3
13	0
14	1
15	0
16	1
17	0
18	2
19	0
20	2
21	0
22	1
23	0
24	3
25	0
26	1
27	0
28	1
29	0
30	3
31	0
32	1
33	0
34	1
35	0
36	3
37	0
38	1
39	0
40	2
41	0
42	3
43	0
44	1
45	0
46	1
47	0
48	3
49	0
50	1
51	0
52	1
53	0
54	2
55	0
56	2
57	0
58	1
59	0
60	5
61	0
62	1
63	0
64	1
65	0
66	2
67	0
68	1
69	0
70	1
71	0
72	4
73	0
74	1
75	0
76	1
77	0
78	2
79	0
80	2
81	0
82	1
83	0
84	4
85	0
86	1
87	0
88	1
89	0
90	4
91	0
92	1
93	0
94	1
95	0
96	3
97	0
98	1
99	0
100	2
101	0
102	2
103	0
104	1
105	0

n	a(n)
1	0
2	1
3	0
4	1
5	0
6	2
7	0
8	1
9	0
10	1
11	0
12	3
13	0
14	1
15	0
16	1
17	0
18	2
19	0
20	2
21	0
22	1
23	0
24	3
25	0
26	1
27	0
28	1
29	0
30	3
31	0
32	1
33	0
34	1
35	0
36	3
37	0
38	1
39	0
40	2
41	0
42	3
43	0
44	1
45	0
46	1
47	0
48	3
49	0
50	1
51	0
52	1
53	0
54	2
55	0
56	2
57	0
58	1
59	0
60	5
61	0
62	1
63	0
64	1
65	0
66	2
67	0
68	1
69	0
70	1
71	0
72	4
73	0
74	1
75	0
76	1
77	0
78	2
79	0
80	2
81	0
82	1
83	0
84	4
85	0
86	1
87	0
88	1
89	0
90	4
91	0
92	1
93	0
94	1
95	0
96	3
97	0
98	1
99	0
100	2
101	0
102	2
103	0
104	1
105	0

n	a(n)
1	0
2	1
3	0
4	1
5	0
6	2
7	0
8	1
9	0
10	1
11	0
12	3
13	0
14	1
15	0
16	1
17	0
18	2
19	0
20	2
21	0
22	1
23	0
24	3
25	0
26	1
27	0
28	1
29	0
30	3
31	0
32	1
33	0
34	1
35	0
36	3
37	0
38	1
39	0
40	2
41	0
42	3
43	0
44	1
45	0
46	1
47	0
48	3
49	0
50	1
51	0
52	1
53	0
54	2
55	0
56	2
57	0
58	1
59	0
60	5
61	0
62	1
63	0
64	1
65	0
66	2
67	0
68	1
69	0
70	1
71	0
72	4
73	0
74	1
75	0
76	1
77	0
78	2
79	0
80	2
81	0
82	1
83	0
84	4
85	0
86	1
87	0
88	1
89	0
90	4
91	0
92	1
93	0
94	1
95	0
96	3
97	0
98	1
99	0
100	2
101	0
102	2
103	0
104	1
105	0