A130695 - cp's OEIS frontend

A130695 Number of ways to write n as (a+1)(b+1)(c+1) - abc with a, b, c nonnegative integers.

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

[1, 3, 3, 6, 3, 9, 4, 9, 6, 12, 3, 15, 6, 12, 9, 15, 3, 21, 7, 15, 9, 18, 6, 24, 9, 15, 9, 24, 6, 30, 6, 15, 15, 24, 9, 30, 7, 21, 12, 30, 3, 33, 15, 21, 15, 24, 6, 39, 12, 27, 12, 27, 9, 42, 12, 21, 15, 36, 6, 45, 13, 18, 21, 36, 12, 39, 6, 33, 15, 45, 9, 42, 12, 24, 24, 30, 9, 57, 18, 30]

cp's OEIS Frontend

A130695 Number of ways to write n as (a+1)(b+1)(c+1) - abc with a, b, c nonnegative integers.

Table of values

List of values

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

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

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