A361824 - cp's OEIS frontend

A361824 Sum of odd middle divisors of n, where "middle divisor" means a divisor in the half-open interval [sqrt(n/2), sqrt(n*2)).

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

[1, 1, 0, 0, 0, 3, 0, 0, 3, 0, 0, 3, 0, 0, 8, 0, 0, 3, 0, 5, 0, 0, 0, 0, 5, 0, 0, 7, 0, 5, 0, 0, 0, 0, 12, 0, 0, 0, 0, 5, 0, 7, 0, 0, 14, 0, 0, 0, 7, 5, 0, 0, 0, 9, 0, 7, 0, 0, 0, 0, 0, 0, 16, 0, 0, 11, 0, 0, 0, 7, 0, 9, 0, 0, 0, 0, 18, 0, 0, 0, 9, 0, 0, 7, 0, 0, 0, 11, 0, 9, 20, 0, 0, 0, 0, 0, 0, 7, 20, 0]

cp's OEIS Frontend

A361824 Sum of odd middle divisors of n, where "middle divisor" means a divisor in the half-open interval [sqrt(n/2), sqrt(n*2)).

Table of values

List of values

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

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

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