A056609 - cp's OEIS frontend

A056609 a(n) = rad(n!)/rad(A001142(n)) where rad(n) is the squarefree kernel of n, A007947(n).

n	a(n)
1	1
2	1
3	2
4	1
5	3
6	1
7	2
8	3
9	5
10	1
11	1
12	1
13	7
14	5
15	2
16	1
17	3
18	1
19	5
20	7
21	11
22	1
23	1
24	5
25	13
26	3
27	7
28	1
29	1
30	1
31	2
32	11
33	17
34	7
35	1
36	1
37	19
38	13
39	1
40	1
41	7
42	1
43	11
44	1
45	23
46	1
47	1
48	7
49	5
50	17
51	13
52	1
53	3
54	11
55	1
56	19
57	29
58	1
59	1
60	1
61	31
62	1
63	2
64	13
65	11
66	1
67	17
68	23
69	1
70	1
71	1
72	1
73	37
74	5
75	19
76	11
77	13
78	1
79	1
80	3
81	41
82	1
83	1
84	17
85	43
86	29
87	11
88	1
89	1
90	13

[1, 1, 2, 1, 3, 1, 2, 3, 5, 1, 1, 1, 7, 5, 2, 1, 3, 1, 5, 7, 11, 1, 1, 5, 13, 3, 7, 1, 1, 1, 2, 11, 17, 7, 1, 1, 19, 13, 1, 1, 7, 1, 11, 1, 23, 1, 1, 7, 5, 17, 13, 1, 3, 11, 1, 19, 29, 1, 1, 1, 31, 1, 2, 13, 11, 1, 17, 23, 1, 1, 1, 1, 37, 5, 19, 11, 13, 1, 1, 3, 41, 1, 1, 17, 43, 29, 11, 1, 1, 13]

cp's OEIS Frontend

A056609 a(n) = rad(n!)/rad(A001142(n)) where rad(n) is the squarefree kernel of n, A007947(n).

Table of values

List of values

n	a(n)
1	1
2	1
3	2
4	1
5	3
6	1
7	2
8	3
9	5
10	1
11	1
12	1
13	7
14	5
15	2
16	1
17	3
18	1
19	5
20	7
21	11
22	1
23	1
24	5
25	13
26	3
27	7
28	1
29	1
30	1
31	2
32	11
33	17
34	7
35	1
36	1
37	19
38	13
39	1
40	1
41	7
42	1
43	11
44	1
45	23
46	1
47	1
48	7
49	5
50	17
51	13
52	1
53	3
54	11
55	1
56	19
57	29
58	1
59	1
60	1
61	31
62	1
63	2
64	13
65	11
66	1
67	17
68	23
69	1
70	1
71	1
72	1
73	37
74	5
75	19
76	11
77	13
78	1
79	1
80	3
81	41
82	1
83	1
84	17
85	43
86	29
87	11
88	1
89	1
90	13

n	a(n)
1	1
2	1
3	2
4	1
5	3
6	1
7	2
8	3
9	5
10	1
11	1
12	1
13	7
14	5
15	2
16	1
17	3
18	1
19	5
20	7
21	11
22	1
23	1
24	5
25	13
26	3
27	7
28	1
29	1
30	1
31	2
32	11
33	17
34	7
35	1
36	1
37	19
38	13
39	1
40	1
41	7
42	1
43	11
44	1
45	23
46	1
47	1
48	7
49	5
50	17
51	13
52	1
53	3
54	11
55	1
56	19
57	29
58	1
59	1
60	1
61	31
62	1
63	2
64	13
65	11
66	1
67	17
68	23
69	1
70	1
71	1
72	1
73	37
74	5
75	19
76	11
77	13
78	1
79	1
80	3
81	41
82	1
83	1
84	17
85	43
86	29
87	11
88	1
89	1
90	13

n	a(n)
1	1
2	1
3	2
4	1
5	3
6	1
7	2
8	3
9	5
10	1
11	1
12	1
13	7
14	5
15	2
16	1
17	3
18	1
19	5
20	7
21	11
22	1
23	1
24	5
25	13
26	3
27	7
28	1
29	1
30	1
31	2
32	11
33	17
34	7
35	1
36	1
37	19
38	13
39	1
40	1
41	7
42	1
43	11
44	1
45	23
46	1
47	1
48	7
49	5
50	17
51	13
52	1
53	3
54	11
55	1
56	19
57	29
58	1
59	1
60	1
61	31
62	1
63	2
64	13
65	11
66	1
67	17
68	23
69	1
70	1
71	1
72	1
73	37
74	5
75	19
76	11
77	13
78	1
79	1
80	3
81	41
82	1
83	1
84	17
85	43
86	29
87	11
88	1
89	1
90	13