A328925 - cp's OEIS frontend

A328925 a(n) = A002322(n)/A118106(n); write n = Product_{i=1..t} p_i^e_i, then a(n) = A002322(n)/(lcm_{1<=i,j<=t,i!=j} ord(p_i,p_j^e_j)), where ord(a,r) is the multiplicative order of a modulo r, and A002322 is the Carmichael lambda (usually written as psi).

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

[1, 1, 2, 2, 4, 1, 6, 2, 6, 1, 10, 1, 12, 2, 1, 4, 16, 1, 18, 1, 1, 1, 22, 1, 20, 1, 18, 1, 28, 1, 30, 8, 1, 2, 1, 1, 36, 1, 4, 1, 40, 1, 42, 1, 1, 2, 46, 1, 42, 1, 1, 1, 52, 1, 4, 1, 1, 1, 58, 1, 60, 6, 1, 16, 3, 1, 66, 2, 1, 1, 70, 1, 72, 1, 1, 1, 1, 1, 78, 1, 54, 2, 82, 1, 1, 3, 1]

cp's OEIS Frontend

A328925 a(n) = A002322(n)/A118106(n); write n = Product_{i=1..t} p_i^e_i, then a(n) = A002322(n)/(lcm_{1<=i,j<=t,i!=j} ord(p_i,p_j^e_j)), where ord(a,r) is the multiplicative order of a modulo r, and A002322 is the Carmichael lambda (usually written as psi).

Table of values

List of values

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

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

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