A326197 - cp's OEIS frontend

A326197 Number of divisors of n that are not reachable from n with any combination of transitions x -> gcd(x,sigma(x)) and x -> gcd(x,phi(x)).

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	1
7	0
8	0
9	0
10	1
11	0
12	2
13	0
14	1
15	1
16	0
17	0
18	1
19	0
20	2
21	1
22	1
23	0
24	2
25	0
26	1
27	0
28	2
29	0
30	4
31	0
32	0
33	1
34	1
35	2
36	4
37	0
38	1
39	1
40	2
41	0
42	4
43	0
44	2
45	3
46	1
47	0
48	4
49	0
50	2
51	1
52	2
53	0
54	2
55	1
56	3
57	1
58	1
59	0
60	7
61	0
62	1
63	2
64	0
65	2
66	4
67	0
68	2
69	1
70	5
71	0
72	4
73	0
74	1
75	3
76	2
77	2
78	4
79	0
80	4
81	0
82	1
83	0
84	6
85	2
86	1
87	1
88	3
89	0
90	6
91	1
92	2
93	1
94	1
95	1
96	4
97	0
98	2
99	3
100	4
101	0
102	4
103	0
104	3
105	5

[0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 2, 0, 1, 1, 0, 0, 1, 0, 2, 1, 1, 0, 2, 0, 1, 0, 2, 0, 4, 0, 0, 1, 1, 2, 4, 0, 1, 1, 2, 0, 4, 0, 2, 3, 1, 0, 4, 0, 2, 1, 2, 0, 2, 1, 3, 1, 1, 0, 7, 0, 1, 2, 0, 2, 4, 0, 2, 1, 5, 0, 4, 0, 1, 3, 2, 2, 4, 0, 4, 0, 1, 0, 6, 2, 1, 1, 3, 0, 6, 1, 2, 1, 1, 1, 4, 0, 2, 3, 4, 0, 4, 0, 3, 5]

cp's OEIS Frontend

A326197 Number of divisors of n that are not reachable from n with any combination of transitions x -> gcd(x,sigma(x)) and x -> gcd(x,phi(x)).

Table of values

List of values

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	1
7	0
8	0
9	0
10	1
11	0
12	2
13	0
14	1
15	1
16	0
17	0
18	1
19	0
20	2
21	1
22	1
23	0
24	2
25	0
26	1
27	0
28	2
29	0
30	4
31	0
32	0
33	1
34	1
35	2
36	4
37	0
38	1
39	1
40	2
41	0
42	4
43	0
44	2
45	3
46	1
47	0
48	4
49	0
50	2
51	1
52	2
53	0
54	2
55	1
56	3
57	1
58	1
59	0
60	7
61	0
62	1
63	2
64	0
65	2
66	4
67	0
68	2
69	1
70	5
71	0
72	4
73	0
74	1
75	3
76	2
77	2
78	4
79	0
80	4
81	0
82	1
83	0
84	6
85	2
86	1
87	1
88	3
89	0
90	6
91	1
92	2
93	1
94	1
95	1
96	4
97	0
98	2
99	3
100	4
101	0
102	4
103	0
104	3
105	5

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	1
7	0
8	0
9	0
10	1
11	0
12	2
13	0
14	1
15	1
16	0
17	0
18	1
19	0
20	2
21	1
22	1
23	0
24	2
25	0
26	1
27	0
28	2
29	0
30	4
31	0
32	0
33	1
34	1
35	2
36	4
37	0
38	1
39	1
40	2
41	0
42	4
43	0
44	2
45	3
46	1
47	0
48	4
49	0
50	2
51	1
52	2
53	0
54	2
55	1
56	3
57	1
58	1
59	0
60	7
61	0
62	1
63	2
64	0
65	2
66	4
67	0
68	2
69	1
70	5
71	0
72	4
73	0
74	1
75	3
76	2
77	2
78	4
79	0
80	4
81	0
82	1
83	0
84	6
85	2
86	1
87	1
88	3
89	0
90	6
91	1
92	2
93	1
94	1
95	1
96	4
97	0
98	2
99	3
100	4
101	0
102	4
103	0
104	3
105	5

n	a(n)
1	0
2	0
3	0
4	0
5	0
6	1
7	0
8	0
9	0
10	1
11	0
12	2
13	0
14	1
15	1
16	0
17	0
18	1
19	0
20	2
21	1
22	1
23	0
24	2
25	0
26	1
27	0
28	2
29	0
30	4
31	0
32	0
33	1
34	1
35	2
36	4
37	0
38	1
39	1
40	2
41	0
42	4
43	0
44	2
45	3
46	1
47	0
48	4
49	0
50	2
51	1
52	2
53	0
54	2
55	1
56	3
57	1
58	1
59	0
60	7
61	0
62	1
63	2
64	0
65	2
66	4
67	0
68	2
69	1
70	5
71	0
72	4
73	0
74	1
75	3
76	2
77	2
78	4
79	0
80	4
81	0
82	1
83	0
84	6
85	2
86	1
87	1
88	3
89	0
90	6
91	1
92	2
93	1
94	1
95	1
96	4
97	0
98	2
99	3
100	4
101	0
102	4
103	0
104	3
105	5