A282249 - cp's OEIS frontend

A282249 Number of representations of n as a sum of products of pairs of positive integers: n = Sum_{k=1..m} i_k*j_k with m >= 0, i_k < j_k, j_k > j_{k+1} and all factors distinct.

n	a(n)
0	1
1	0
2	1
3	1
4	1
5	1
6	2
7	1
8	2
9	1
10	3
11	3
12	4
13	4
14	6
15	5
16	6
17	8
18	8
19	9
20	11
21	10
22	14
23	15
24	14
25	14
26	21
27	18
28	21
29	25
30	25
31	30
32	34
33	33
34	42
35	45
36	41
37	55
38	62
39	58
40	66
41	79
42	76
43	94
44	95
45	97
46	115
47	131
48	120
49	148
50	153
51	159
52	175
53	203
54	189
55	226
56	232
57	243
58	268
59	299
60	271
61	340
62	349
63	363
64	389

[1, 0, 1, 1, 1, 1, 2, 1, 2, 1, 3, 3, 4, 4, 6, 5, 6, 8, 8, 9, 11, 10, 14, 15, 14, 14, 21, 18, 21, 25, 25, 30, 34, 33, 42, 45, 41, 55, 62, 58, 66, 79, 76, 94, 95, 97, 115, 131, 120, 148, 153, 159, 175, 203, 189, 226, 232, 243, 268, 299, 271, 340, 349, 363, 389]

cp's OEIS Frontend

A282249 Number of representations of n as a sum of products of pairs of positive integers: n = Sum_{k=1..m} i_k*j_k with m >= 0, i_k < j_k, j_k > j_{k+1} and all factors distinct.

Table of values

List of values

n	a(n)
0	1
1	0
2	1
3	1
4	1
5	1
6	2
7	1
8	2
9	1
10	3
11	3
12	4
13	4
14	6
15	5
16	6
17	8
18	8
19	9
20	11
21	10
22	14
23	15
24	14
25	14
26	21
27	18
28	21
29	25
30	25
31	30
32	34
33	33
34	42
35	45
36	41
37	55
38	62
39	58
40	66
41	79
42	76
43	94
44	95
45	97
46	115
47	131
48	120
49	148
50	153
51	159
52	175
53	203
54	189
55	226
56	232
57	243
58	268
59	299
60	271
61	340
62	349
63	363
64	389

n	a(n)
0	1
1	0
2	1
3	1
4	1
5	1
6	2
7	1
8	2
9	1
10	3
11	3
12	4
13	4
14	6
15	5
16	6
17	8
18	8
19	9
20	11
21	10
22	14
23	15
24	14
25	14
26	21
27	18
28	21
29	25
30	25
31	30
32	34
33	33
34	42
35	45
36	41
37	55
38	62
39	58
40	66
41	79
42	76
43	94
44	95
45	97
46	115
47	131
48	120
49	148
50	153
51	159
52	175
53	203
54	189
55	226
56	232
57	243
58	268
59	299
60	271
61	340
62	349
63	363
64	389

n	a(n)
0	1
1	0
2	1
3	1
4	1
5	1
6	2
7	1
8	2
9	1
10	3
11	3
12	4
13	4
14	6
15	5
16	6
17	8
18	8
19	9
20	11
21	10
22	14
23	15
24	14
25	14
26	21
27	18
28	21
29	25
30	25
31	30
32	34
33	33
34	42
35	45
36	41
37	55
38	62
39	58
40	66
41	79
42	76
43	94
44	95
45	97
46	115
47	131
48	120
49	148
50	153
51	159
52	175
53	203
54	189
55	226
56	232
57	243
58	268
59	299
60	271
61	340
62	349
63	363
64	389