A335841 - cp's OEIS frontend

A335841 Number of distinct rectangles that can be made with one even and one odd side length that are divisors of 2n.

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

[1, 2, 4, 3, 4, 8, 4, 4, 9, 8, 4, 12, 4, 8, 16, 5, 4, 18, 4, 12, 16, 8, 4, 16, 9, 8, 16, 12, 4, 32, 4, 6, 16, 8, 16, 27, 4, 8, 16, 16, 4, 32, 4, 12, 36, 8, 4, 20, 9, 18, 16, 12, 4, 32, 16, 16, 16, 8, 4, 48, 4, 8, 36, 7, 16, 32, 4, 12, 16, 32, 4, 36, 4, 8, 36, 12, 16, 32, 4, 20]

cp's OEIS Frontend

A335841 Number of distinct rectangles that can be made with one even and one odd side length that are divisors of 2n.

Table of values

List of values

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

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

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