A383489 - cp's OEIS frontend

A383489 a(n) is the number of divisors d_i(m) for which a divisor d_j(m) exists such that d_i(m) < d_j(m) < sigma(d_i(m)) where m = A383488(n).

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

[1, 1, 1, 4, 2, 5, 3, 2, 6, 2, 1, 7, 2, 1, 8, 1, 6, 7, 1, 6, 8, 1, 2, 1, 1, 1, 8, 1, 4, 1, 11, 4, 1, 7, 1, 6, 11, 5, 1, 6, 8, 3, 11, 1, 1, 3, 13, 1, 1, 10, 1, 5, 5, 6, 3, 9, 12, 4, 1, 7, 1, 6, 4, 1, 15, 1, 13, 1, 1, 4, 11, 1, 10, 1, 6, 11, 1, 1, 1, 14, 4, 2, 13]

cp's OEIS Frontend

A383489 a(n) is the number of divisors d_i(m) for which a divisor d_j(m) exists such that d_i(m) < d_j(m) < sigma(d_i(m)) where m = A383488(n).

Table of values

List of values

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

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

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