A212219 - cp's OEIS frontend

A212219 Number of representations of n as a sum of products of distinct pairs of positive integers >=2, n = Sum_{k=1..m} i_k*j_k with 2<=i_k<=j_k, i_k

n	a(n)
0	1
1	0
2	0
3	0
4	1
5	0
6	1
7	0
8	1
9	1
10	1
11	0
12	2
13	1
14	1
15	1
16	3
17	0
18	3
19	1
20	3
21	2
22	3
23	1
24	5
25	3
26	3
27	2
28	6
29	4
30	5
31	3
32	6
33	6
34	7
35	2
36	11
37	5
38	8
39	6
40	12
41	7
42	10
43	8
44	12
45	11
46	14
47	8
48	17
49	11
50	16
51	13
52	19
53	13
54	23
55	15
56	22
57	17
58	25
59	18
60	29
61	24
62	24
63	23
64	36
65	25
66	34
67	25
68	42
69	34
70	39
71	30
72	47
73	40
74	48
75	37

[1, 0, 0, 0, 1, 0, 1, 0, 1, 1, 1, 0, 2, 1, 1, 1, 3, 0, 3, 1, 3, 2, 3, 1, 5, 3, 3, 2, 6, 4, 5, 3, 6, 6, 7, 2, 11, 5, 8, 6, 12, 7, 10, 8, 12, 11, 14, 8, 17, 11, 16, 13, 19, 13, 23, 15, 22, 17, 25, 18, 29, 24, 24, 23, 36, 25, 34, 25, 42, 34, 39, 30, 47, 40, 48, 37]

cp's OEIS Frontend

A212219 Number of representations of n as a sum of products of distinct pairs of positive integers >=2, n = Sum_{k=1..m} i_k*j_k with 2<=i_k<=j_k, i_k

Table of values

List of values

n	a(n)
0	1
1	0
2	0
3	0
4	1
5	0
6	1
7	0
8	1
9	1
10	1
11	0
12	2
13	1
14	1
15	1
16	3
17	0
18	3
19	1
20	3
21	2
22	3
23	1
24	5
25	3
26	3
27	2
28	6
29	4
30	5
31	3
32	6
33	6
34	7
35	2
36	11
37	5
38	8
39	6
40	12
41	7
42	10
43	8
44	12
45	11
46	14
47	8
48	17
49	11
50	16
51	13
52	19
53	13
54	23
55	15
56	22
57	17
58	25
59	18
60	29
61	24
62	24
63	23
64	36
65	25
66	34
67	25
68	42
69	34
70	39
71	30
72	47
73	40
74	48
75	37

n	a(n)
0	1
1	0
2	0
3	0
4	1
5	0
6	1
7	0
8	1
9	1
10	1
11	0
12	2
13	1
14	1
15	1
16	3
17	0
18	3
19	1
20	3
21	2
22	3
23	1
24	5
25	3
26	3
27	2
28	6
29	4
30	5
31	3
32	6
33	6
34	7
35	2
36	11
37	5
38	8
39	6
40	12
41	7
42	10
43	8
44	12
45	11
46	14
47	8
48	17
49	11
50	16
51	13
52	19
53	13
54	23
55	15
56	22
57	17
58	25
59	18
60	29
61	24
62	24
63	23
64	36
65	25
66	34
67	25
68	42
69	34
70	39
71	30
72	47
73	40
74	48
75	37

n	a(n)
0	1
1	0
2	0
3	0
4	1
5	0
6	1
7	0
8	1
9	1
10	1
11	0
12	2
13	1
14	1
15	1
16	3
17	0
18	3
19	1
20	3
21	2
22	3
23	1
24	5
25	3
26	3
27	2
28	6
29	4
30	5
31	3
32	6
33	6
34	7
35	2
36	11
37	5
38	8
39	6
40	12
41	7
42	10
43	8
44	12
45	11
46	14
47	8
48	17
49	11
50	16
51	13
52	19
53	13
54	23
55	15
56	22
57	17
58	25
59	18
60	29
61	24
62	24
63	23
64	36
65	25
66	34
67	25
68	42
69	34
70	39
71	30
72	47
73	40
74	48
75	37