A264024 - cp's OEIS frontend

A264024 a(n) = gcd(phi(k), k-1) / lambda(k), where k is n-th Carmichael number A002997(n) and lambda(k) = A002322(k).

n	a(n)
1	1
2	1
3	12
4	2
5	1
6	1
7	9
8	1
9	4
10	1
11	6
12	18
13	1
14	1
15	1
16	2
17	1
18	1
19	1
20	2
21	12
22	1
23	1
24	1
25	1
26	3
27	3
28	3
29	50
30	1
31	18
32	2
33	1
34	2
35	1
36	2
37	5
38	36
39	1
40	1
41	2
42	3
43	4
44	3
45	3
46	2
47	3
48	1
49	1
50	3
51	3
52	2
53	4
54	2
55	5
56	1
57	4
58	4
59	4
60	1
61	1
62	3
63	40
64	28
65	1
66	2
67	4
68	2
69	4
70	1
71	2
72	1
73	2
74	1
75	33
76	5
77	50
78	64
79	1
80	1
81	3
82	2
83	1
84	1
85	12
86	3
87	1
88	12
89	1
90	1
91	1
92	24
93	1
94	3
95	128
96	1
97	6
98	8
99	5
100	20
101	3
102	2
103	2
104	6
105	4

[1, 1, 12, 2, 1, 1, 9, 1, 4, 1, 6, 18, 1, 1, 1, 2, 1, 1, 1, 2, 12, 1, 1, 1, 1, 3, 3, 3, 50, 1, 18, 2, 1, 2, 1, 2, 5, 36, 1, 1, 2, 3, 4, 3, 3, 2, 3, 1, 1, 3, 3, 2, 4, 2, 5, 1, 4, 4, 4, 1, 1, 3, 40, 28, 1, 2, 4, 2, 4, 1, 2, 1, 2, 1, 33, 5, 50, 64, 1, 1, 3, 2, 1, 1, 12, 3, 1, 12, 1, 1, 1, 24, 1, 3, 128, 1, 6, 8, 5, 20, 3, 2, 2, 6, 4]

cp's OEIS Frontend

A264024 a(n) = gcd(phi(k), k-1) / lambda(k), where k is n-th Carmichael number A002997(n) and lambda(k) = A002322(k).

Table of values

List of values

n	a(n)
1	1
2	1
3	12
4	2
5	1
6	1
7	9
8	1
9	4
10	1
11	6
12	18
13	1
14	1
15	1
16	2
17	1
18	1
19	1
20	2
21	12
22	1
23	1
24	1
25	1
26	3
27	3
28	3
29	50
30	1
31	18
32	2
33	1
34	2
35	1
36	2
37	5
38	36
39	1
40	1
41	2
42	3
43	4
44	3
45	3
46	2
47	3
48	1
49	1
50	3
51	3
52	2
53	4
54	2
55	5
56	1
57	4
58	4
59	4
60	1
61	1
62	3
63	40
64	28
65	1
66	2
67	4
68	2
69	4
70	1
71	2
72	1
73	2
74	1
75	33
76	5
77	50
78	64
79	1
80	1
81	3
82	2
83	1
84	1
85	12
86	3
87	1
88	12
89	1
90	1
91	1
92	24
93	1
94	3
95	128
96	1
97	6
98	8
99	5
100	20
101	3
102	2
103	2
104	6
105	4

n	a(n)
1	1
2	1
3	12
4	2
5	1
6	1
7	9
8	1
9	4
10	1
11	6
12	18
13	1
14	1
15	1
16	2
17	1
18	1
19	1
20	2
21	12
22	1
23	1
24	1
25	1
26	3
27	3
28	3
29	50
30	1
31	18
32	2
33	1
34	2
35	1
36	2
37	5
38	36
39	1
40	1
41	2
42	3
43	4
44	3
45	3
46	2
47	3
48	1
49	1
50	3
51	3
52	2
53	4
54	2
55	5
56	1
57	4
58	4
59	4
60	1
61	1
62	3
63	40
64	28
65	1
66	2
67	4
68	2
69	4
70	1
71	2
72	1
73	2
74	1
75	33
76	5
77	50
78	64
79	1
80	1
81	3
82	2
83	1
84	1
85	12
86	3
87	1
88	12
89	1
90	1
91	1
92	24
93	1
94	3
95	128
96	1
97	6
98	8
99	5
100	20
101	3
102	2
103	2
104	6
105	4

n	a(n)
1	1
2	1
3	12
4	2
5	1
6	1
7	9
8	1
9	4
10	1
11	6
12	18
13	1
14	1
15	1
16	2
17	1
18	1
19	1
20	2
21	12
22	1
23	1
24	1
25	1
26	3
27	3
28	3
29	50
30	1
31	18
32	2
33	1
34	2
35	1
36	2
37	5
38	36
39	1
40	1
41	2
42	3
43	4
44	3
45	3
46	2
47	3
48	1
49	1
50	3
51	3
52	2
53	4
54	2
55	5
56	1
57	4
58	4
59	4
60	1
61	1
62	3
63	40
64	28
65	1
66	2
67	4
68	2
69	4
70	1
71	2
72	1
73	2
74	1
75	33
76	5
77	50
78	64
79	1
80	1
81	3
82	2
83	1
84	1
85	12
86	3
87	1
88	12
89	1
90	1
91	1
92	24
93	1
94	3
95	128
96	1
97	6
98	8
99	5
100	20
101	3
102	2
103	2
104	6
105	4