A375187 - cp's OEIS frontend

A375187 Number of unitary square divisors of n!.

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	4
7	4
8	2
9	2
10	8
11	8
12	4
13	4
14	4
15	4
16	4
17	4
18	8
19	8
20	16
21	4
22	4
23	4
24	16
25	16
26	16
27	8
28	16
29	16
30	32
31	32
32	16
33	4
34	16
35	16
36	16
37	16
38	16
39	16
40	16
41	16
42	8
43	8
44	16
45	32
46	128
47	128
48	256
49	256
50	128
51	32
52	64
53	64
54	256
55	64
56	16
57	4
58	16
59	16
60	64
61	64
62	64
63	128
64	128
65	32
66	64
67	64
68	128
69	128

[1, 1, 1, 1, 1, 1, 4, 4, 2, 2, 8, 8, 4, 4, 4, 4, 4, 4, 8, 8, 16, 4, 4, 4, 16, 16, 16, 8, 16, 16, 32, 32, 16, 4, 16, 16, 16, 16, 16, 16, 16, 16, 8, 8, 16, 32, 128, 128, 256, 256, 128, 32, 64, 64, 256, 64, 16, 4, 16, 16, 64, 64, 64, 128, 128, 32, 64, 64, 128, 128]

cp's OEIS Frontend

A375187 Number of unitary square divisors of n!.

Table of values

List of values

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	4
7	4
8	2
9	2
10	8
11	8
12	4
13	4
14	4
15	4
16	4
17	4
18	8
19	8
20	16
21	4
22	4
23	4
24	16
25	16
26	16
27	8
28	16
29	16
30	32
31	32
32	16
33	4
34	16
35	16
36	16
37	16
38	16
39	16
40	16
41	16
42	8
43	8
44	16
45	32
46	128
47	128
48	256
49	256
50	128
51	32
52	64
53	64
54	256
55	64
56	16
57	4
58	16
59	16
60	64
61	64
62	64
63	128
64	128
65	32
66	64
67	64
68	128
69	128

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	4
7	4
8	2
9	2
10	8
11	8
12	4
13	4
14	4
15	4
16	4
17	4
18	8
19	8
20	16
21	4
22	4
23	4
24	16
25	16
26	16
27	8
28	16
29	16
30	32
31	32
32	16
33	4
34	16
35	16
36	16
37	16
38	16
39	16
40	16
41	16
42	8
43	8
44	16
45	32
46	128
47	128
48	256
49	256
50	128
51	32
52	64
53	64
54	256
55	64
56	16
57	4
58	16
59	16
60	64
61	64
62	64
63	128
64	128
65	32
66	64
67	64
68	128
69	128

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	4
7	4
8	2
9	2
10	8
11	8
12	4
13	4
14	4
15	4
16	4
17	4
18	8
19	8
20	16
21	4
22	4
23	4
24	16
25	16
26	16
27	8
28	16
29	16
30	32
31	32
32	16
33	4
34	16
35	16
36	16
37	16
38	16
39	16
40	16
41	16
42	8
43	8
44	16
45	32
46	128
47	128
48	256
49	256
50	128
51	32
52	64
53	64
54	256
55	64
56	16
57	4
58	16
59	16
60	64
61	64
62	64
63	128
64	128
65	32
66	64
67	64
68	128
69	128