A318505 - cp's OEIS frontend

A318505 Sum of divisors of n, up to, but not including the second largest of them A032742(n); a(1) = 0 by convention.

n	a(n)
1	0
2	0
3	0
4	1
5	0
6	3
7	0
8	3
9	1
10	3
11	0
12	10
13	0
14	3
15	4
16	7
17	0
18	12
19	0
20	12
21	4
22	3
23	0
24	24
25	1
26	3
27	4
28	14
29	0
30	27
31	0
32	15
33	4
34	3
35	6
36	37
37	0
38	3
39	4
40	30
41	0
42	33
43	0
44	18
45	18
46	3
47	0
48	52
49	1
50	18
51	4
52	20
53	0
54	39
55	6
56	36
57	4
58	3
59	0
60	78
61	0
62	3
63	20
64	31
65	6
66	45
67	0
68	24
69	4
70	39
71	0
72	87
73	0
74	3
75	24
76	26
77	8
78	51
79	0
80	66
81	13
82	3
83	0
84	98
85	6
86	3
87	4
88	48
89	0
90	99
91	8
92	30
93	4
94	3
95	6
96	108
97	0
98	24
99	24
100	67
101	0
102	63
103	0
104	54
105	52

[0, 0, 0, 1, 0, 3, 0, 3, 1, 3, 0, 10, 0, 3, 4, 7, 0, 12, 0, 12, 4, 3, 0, 24, 1, 3, 4, 14, 0, 27, 0, 15, 4, 3, 6, 37, 0, 3, 4, 30, 0, 33, 0, 18, 18, 3, 0, 52, 1, 18, 4, 20, 0, 39, 6, 36, 4, 3, 0, 78, 0, 3, 20, 31, 6, 45, 0, 24, 4, 39, 0, 87, 0, 3, 24, 26, 8, 51, 0, 66, 13, 3, 0, 98, 6, 3, 4, 48, 0, 99, 8, 30, 4, 3, 6, 108, 0, 24, 24, 67, 0, 63, 0, 54, 52]

cp's OEIS Frontend

A318505 Sum of divisors of n, up to, but not including the second largest of them A032742(n); a(1) = 0 by convention.

Table of values

List of values

n	a(n)
1	0
2	0
3	0
4	1
5	0
6	3
7	0
8	3
9	1
10	3
11	0
12	10
13	0
14	3
15	4
16	7
17	0
18	12
19	0
20	12
21	4
22	3
23	0
24	24
25	1
26	3
27	4
28	14
29	0
30	27
31	0
32	15
33	4
34	3
35	6
36	37
37	0
38	3
39	4
40	30
41	0
42	33
43	0
44	18
45	18
46	3
47	0
48	52
49	1
50	18
51	4
52	20
53	0
54	39
55	6
56	36
57	4
58	3
59	0
60	78
61	0
62	3
63	20
64	31
65	6
66	45
67	0
68	24
69	4
70	39
71	0
72	87
73	0
74	3
75	24
76	26
77	8
78	51
79	0
80	66
81	13
82	3
83	0
84	98
85	6
86	3
87	4
88	48
89	0
90	99
91	8
92	30
93	4
94	3
95	6
96	108
97	0
98	24
99	24
100	67
101	0
102	63
103	0
104	54
105	52

n	a(n)
1	0
2	0
3	0
4	1
5	0
6	3
7	0
8	3
9	1
10	3
11	0
12	10
13	0
14	3
15	4
16	7
17	0
18	12
19	0
20	12
21	4
22	3
23	0
24	24
25	1
26	3
27	4
28	14
29	0
30	27
31	0
32	15
33	4
34	3
35	6
36	37
37	0
38	3
39	4
40	30
41	0
42	33
43	0
44	18
45	18
46	3
47	0
48	52
49	1
50	18
51	4
52	20
53	0
54	39
55	6
56	36
57	4
58	3
59	0
60	78
61	0
62	3
63	20
64	31
65	6
66	45
67	0
68	24
69	4
70	39
71	0
72	87
73	0
74	3
75	24
76	26
77	8
78	51
79	0
80	66
81	13
82	3
83	0
84	98
85	6
86	3
87	4
88	48
89	0
90	99
91	8
92	30
93	4
94	3
95	6
96	108
97	0
98	24
99	24
100	67
101	0
102	63
103	0
104	54
105	52

n	a(n)
1	0
2	0
3	0
4	1
5	0
6	3
7	0
8	3
9	1
10	3
11	0
12	10
13	0
14	3
15	4
16	7
17	0
18	12
19	0
20	12
21	4
22	3
23	0
24	24
25	1
26	3
27	4
28	14
29	0
30	27
31	0
32	15
33	4
34	3
35	6
36	37
37	0
38	3
39	4
40	30
41	0
42	33
43	0
44	18
45	18
46	3
47	0
48	52
49	1
50	18
51	4
52	20
53	0
54	39
55	6
56	36
57	4
58	3
59	0
60	78
61	0
62	3
63	20
64	31
65	6
66	45
67	0
68	24
69	4
70	39
71	0
72	87
73	0
74	3
75	24
76	26
77	8
78	51
79	0
80	66
81	13
82	3
83	0
84	98
85	6
86	3
87	4
88	48
89	0
90	99
91	8
92	30
93	4
94	3
95	6
96	108
97	0
98	24
99	24
100	67
101	0
102	63
103	0
104	54
105	52