A376555 - cp's OEIS frontend

A376555 The number of unitary square divisors of binomial(n, floor(n/2)).

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

[1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 4, 1, 2, 2, 1, 2, 2, 1, 2, 1, 2, 2, 1, 1, 2, 4, 2, 4, 2, 2, 4, 2, 2, 1, 2, 2, 4, 4, 2, 2, 4, 2, 1, 2, 1, 2, 4, 4, 8, 8, 4, 4, 2, 2, 4, 2, 1, 1, 2, 1, 2, 2, 1, 4, 4, 2, 4, 2, 4, 4, 2, 1, 2, 2, 1, 4, 2, 4, 8, 2, 4, 8, 4, 2, 1, 2, 4]

cp's OEIS Frontend

A376555 The number of unitary square divisors of binomial(n, floor(n/2)).

Table of values

List of values

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

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

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