A072670 - cp's OEIS frontend

A072670 Number of ways to write n as i*j + i + j, 0 < i <= j.

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

[0, 0, 0, 1, 0, 1, 0, 1, 1, 1, 0, 2, 0, 1, 1, 2, 0, 2, 0, 2, 1, 1, 0, 3, 1, 1, 1, 2, 0, 3, 0, 2, 1, 1, 1, 4, 0, 1, 1, 3, 0, 3, 0, 2, 2, 1, 0, 4, 1, 2, 1, 2, 0, 3, 1, 3, 1, 1, 0, 5, 0, 1, 2, 3, 1, 3, 0, 2, 1, 3, 0, 5, 0, 1, 2, 2, 1, 3, 0, 4, 2, 1, 0, 5, 1, 1, 1, 3, 0, 5, 1, 2, 1, 1, 1, 5, 0, 2, 2, 4, 0, 3, 0, 3, 3]

cp's OEIS Frontend

A072670 Number of ways to write n as i*j + i + j, 0 < i <= j.

Table of values

List of values

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

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

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