A104886 - cp's OEIS frontend

A104886 Sequence A048138, the number of times that a positive integer occurs as the sum of proper divisors, if Goldbach partitions (two odd primes, which account for most of the values) are ignored.

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

[0, 1, 1, 0, 2, 1, 2, 0, 1, 0, 1, 1, 2, 1, 2, 0, 1, 0, 2, 1, 2, 0, 1, 0, 1, 0, 1, 0, 1, 2, 2, 1, 1, 0, 1, 0, 1, 0, 3, 1, 2, 1, 2, 0, 2, 0, 1, 1, 2, 0, 0, 0, 2, 1, 1, 2, 1, 0, 1, 0, 2, 1, 3, 1, 1, 0, 1, 0, 1, 0, 1, 2, 3, 0, 3, 0, 1, 0, 1, 2, 1, 0, 1, 0, 1, 1, 0, 1, 2, 0, 2, 0, 1, 0, 0, 2]

cp's OEIS Frontend

A104886 Sequence A048138, the number of times that a positive integer occurs as the sum of proper divisors, if Goldbach partitions (two odd primes, which account for most of the values) are ignored.

Table of values

List of values

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

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

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