A050521 - cp's OEIS frontend

A050521 Number of factorizations of (n,2*n) into pairs (k,l).

n	a(n)
1	1
2	1
3	1
4	3
5	1
6	7
7	1
8	10
9	4
10	7
11	1
12	33
13	1
14	7
15	9
16	28
17	1
18	39
19	1
20	33
21	9
22	7
23	1
24	133
25	4
26	7
27	15
28	33
29	1
30	91
31	1
32	80
33	9
34	7
35	9
36	229
37	1
38	7
39	9
40	133
41	1
42	91
43	1
44	33
45	53
46	7
47	1
48	474
49	4
50	39
51	9
52	33
53	1
54	175
55	9
56	133
57	9
58	7
59	1
60	569
61	1
62	7
63	53
64	208
65	9
66	91
67	1
68	33
69	9
70	91
71	1

[1, 1, 1, 3, 1, 7, 1, 10, 4, 7, 1, 33, 1, 7, 9, 28, 1, 39, 1, 33, 9, 7, 1, 133, 4, 7, 15, 33, 1, 91, 1, 80, 9, 7, 9, 229, 1, 7, 9, 133, 1, 91, 1, 33, 53, 7, 1, 474, 4, 39, 9, 33, 1, 175, 9, 133, 9, 7, 1, 569, 1, 7, 53, 208, 9, 91, 1, 33, 9, 91, 1]

cp's OEIS Frontend

A050521 Number of factorizations of (n,2*n) into pairs (k,l).

Table of values

List of values

n	a(n)
1	1
2	1
3	1
4	3
5	1
6	7
7	1
8	10
9	4
10	7
11	1
12	33
13	1
14	7
15	9
16	28
17	1
18	39
19	1
20	33
21	9
22	7
23	1
24	133
25	4
26	7
27	15
28	33
29	1
30	91
31	1
32	80
33	9
34	7
35	9
36	229
37	1
38	7
39	9
40	133
41	1
42	91
43	1
44	33
45	53
46	7
47	1
48	474
49	4
50	39
51	9
52	33
53	1
54	175
55	9
56	133
57	9
58	7
59	1
60	569
61	1
62	7
63	53
64	208
65	9
66	91
67	1
68	33
69	9
70	91
71	1

n	a(n)
1	1
2	1
3	1
4	3
5	1
6	7
7	1
8	10
9	4
10	7
11	1
12	33
13	1
14	7
15	9
16	28
17	1
18	39
19	1
20	33
21	9
22	7
23	1
24	133
25	4
26	7
27	15
28	33
29	1
30	91
31	1
32	80
33	9
34	7
35	9
36	229
37	1
38	7
39	9
40	133
41	1
42	91
43	1
44	33
45	53
46	7
47	1
48	474
49	4
50	39
51	9
52	33
53	1
54	175
55	9
56	133
57	9
58	7
59	1
60	569
61	1
62	7
63	53
64	208
65	9
66	91
67	1
68	33
69	9
70	91
71	1

n	a(n)
1	1
2	1
3	1
4	3
5	1
6	7
7	1
8	10
9	4
10	7
11	1
12	33
13	1
14	7
15	9
16	28
17	1
18	39
19	1
20	33
21	9
22	7
23	1
24	133
25	4
26	7
27	15
28	33
29	1
30	91
31	1
32	80
33	9
34	7
35	9
36	229
37	1
38	7
39	9
40	133
41	1
42	91
43	1
44	33
45	53
46	7
47	1
48	474
49	4
50	39
51	9
52	33
53	1
54	175
55	9
56	133
57	9
58	7
59	1
60	569
61	1
62	7
63	53
64	208
65	9
66	91
67	1
68	33
69	9
70	91
71	1