A331179 - cp's OEIS frontend

A331179 Number of values of k, 1 <= k <= n, with A173557(k) = A173557(n), where A173557(n) = Product_{p-1 | p is prime and divisor of n}.

n	a(n)
1	1
2	2
3	1
4	3
5	1
6	2
7	1
8	4
9	3
10	2
11	1
12	4
13	1
14	2
15	1
16	5
17	1
18	5
19	1
20	3
21	2
22	2
23	1
24	6
25	4
26	3
27	7
28	3
29	1
30	2
31	1
32	6
33	1
34	2
35	1
36	8
37	1
38	2
39	2
40	5
41	1
42	4
43	1
44	3
45	3
46	2
47	1
48	9
49	4
50	6
51	1
52	5
53	1
54	10
55	2
56	5
57	2
58	2
59	1
60	4
61	1
62	2
63	6
64	7
65	1
66	2
67	1
68	3
69	1
70	3
71	1
72	11
73	1
74	3
75	5
76	3
77	2
78	4
79	1
80	7
81	12
82	3
83	1
84	7
85	1
86	2
87	1
88	4
89	1
90	6
91	2
92	3
93	3
94	2
95	3
96	13
97	1
98	6
99	3
100	8
101	1
102	2
103	1
104	8
105	2

[1, 2, 1, 3, 1, 2, 1, 4, 3, 2, 1, 4, 1, 2, 1, 5, 1, 5, 1, 3, 2, 2, 1, 6, 4, 3, 7, 3, 1, 2, 1, 6, 1, 2, 1, 8, 1, 2, 2, 5, 1, 4, 1, 3, 3, 2, 1, 9, 4, 6, 1, 5, 1, 10, 2, 5, 2, 2, 1, 4, 1, 2, 6, 7, 1, 2, 1, 3, 1, 3, 1, 11, 1, 3, 5, 3, 2, 4, 1, 7, 12, 3, 1, 7, 1, 2, 1, 4, 1, 6, 2, 3, 3, 2, 3, 13, 1, 6, 3, 8, 1, 2, 1, 8, 2]

cp's OEIS Frontend

A331179 Number of values of k, 1 <= k <= n, with A173557(k) = A173557(n), where A173557(n) = Product_{p-1 | p is prime and divisor of n}.

Table of values

List of values

n	a(n)
1	1
2	2
3	1
4	3
5	1
6	2
7	1
8	4
9	3
10	2
11	1
12	4
13	1
14	2
15	1
16	5
17	1
18	5
19	1
20	3
21	2
22	2
23	1
24	6
25	4
26	3
27	7
28	3
29	1
30	2
31	1
32	6
33	1
34	2
35	1
36	8
37	1
38	2
39	2
40	5
41	1
42	4
43	1
44	3
45	3
46	2
47	1
48	9
49	4
50	6
51	1
52	5
53	1
54	10
55	2
56	5
57	2
58	2
59	1
60	4
61	1
62	2
63	6
64	7
65	1
66	2
67	1
68	3
69	1
70	3
71	1
72	11
73	1
74	3
75	5
76	3
77	2
78	4
79	1
80	7
81	12
82	3
83	1
84	7
85	1
86	2
87	1
88	4
89	1
90	6
91	2
92	3
93	3
94	2
95	3
96	13
97	1
98	6
99	3
100	8
101	1
102	2
103	1
104	8
105	2

n	a(n)
1	1
2	2
3	1
4	3
5	1
6	2
7	1
8	4
9	3
10	2
11	1
12	4
13	1
14	2
15	1
16	5
17	1
18	5
19	1
20	3
21	2
22	2
23	1
24	6
25	4
26	3
27	7
28	3
29	1
30	2
31	1
32	6
33	1
34	2
35	1
36	8
37	1
38	2
39	2
40	5
41	1
42	4
43	1
44	3
45	3
46	2
47	1
48	9
49	4
50	6
51	1
52	5
53	1
54	10
55	2
56	5
57	2
58	2
59	1
60	4
61	1
62	2
63	6
64	7
65	1
66	2
67	1
68	3
69	1
70	3
71	1
72	11
73	1
74	3
75	5
76	3
77	2
78	4
79	1
80	7
81	12
82	3
83	1
84	7
85	1
86	2
87	1
88	4
89	1
90	6
91	2
92	3
93	3
94	2
95	3
96	13
97	1
98	6
99	3
100	8
101	1
102	2
103	1
104	8
105	2

n	a(n)
1	1
2	2
3	1
4	3
5	1
6	2
7	1
8	4
9	3
10	2
11	1
12	4
13	1
14	2
15	1
16	5
17	1
18	5
19	1
20	3
21	2
22	2
23	1
24	6
25	4
26	3
27	7
28	3
29	1
30	2
31	1
32	6
33	1
34	2
35	1
36	8
37	1
38	2
39	2
40	5
41	1
42	4
43	1
44	3
45	3
46	2
47	1
48	9
49	4
50	6
51	1
52	5
53	1
54	10
55	2
56	5
57	2
58	2
59	1
60	4
61	1
62	2
63	6
64	7
65	1
66	2
67	1
68	3
69	1
70	3
71	1
72	11
73	1
74	3
75	5
76	3
77	2
78	4
79	1
80	7
81	12
82	3
83	1
84	7
85	1
86	2
87	1
88	4
89	1
90	6
91	2
92	3
93	3
94	2
95	3
96	13
97	1
98	6
99	3
100	8
101	1
102	2
103	1
104	8
105	2