A343073 - cp's OEIS frontend

A343073 a(n) is the number of integers 0 < b < n such that b^^x == 1 (mod n) has a solution; ^^ denotes the tetration operation (cf. A321312).

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

[1, 2, 1, 3, 1, 2, 1, 2, 1, 3, 1, 6, 2, 5, 1, 9, 1, 5, 1, 3, 3, 2, 1, 3, 3, 2, 2, 5, 1, 3, 1, 5, 1, 8, 1, 9, 2, 5, 1, 8, 1, 6, 3, 5, 1, 2, 1, 4, 1, 17, 2, 5, 1, 5, 2, 3, 3, 3, 1, 7, 3, 3, 1, 15, 2, 5, 1, 5, 2, 4, 1, 16, 4, 5, 3, 10, 1, 5]

cp's OEIS Frontend

A343073 a(n) is the number of integers 0 < b < n such that b^^x == 1 (mod n) has a solution; ^^ denotes the tetration operation (cf. A321312).

Table of values

List of values

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

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

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