A303754 - cp's OEIS frontend

A303754 a(1) = 1 and for n > 1, a(n) = number of values of k, 2 <= k <= n, with A303753(k) = A303753(n), where A303753 is ordinal transform of cototient, A051953.

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

[1, 1, 1, 2, 1, 3, 1, 2, 4, 5, 1, 6, 1, 3, 7, 2, 1, 8, 1, 4, 9, 3, 1, 10, 11, 12, 5, 6, 1, 13, 1, 4, 14, 15, 16, 17, 1, 18, 19, 7, 1, 20, 1, 5, 21, 2, 1, 22, 8, 9, 23, 24, 1, 25, 10, 11, 12, 6, 1, 26, 1, 7, 27, 3, 28, 29, 1, 13, 30, 14, 1, 31, 1, 32, 33, 34, 15, 35, 1, 16, 17, 36, 1, 37, 8, 18, 38, 9, 1, 39, 19, 4, 40, 2, 41, 42, 1, 43, 44, 20, 1, 45, 1, 21]

cp's OEIS Frontend

A303754 a(1) = 1 and for n > 1, a(n) = number of values of k, 2 <= k <= n, with A303753(k) = A303753(n), where A303753 is ordinal transform of cototient, A051953.

Table of values

List of values

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

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

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