A300242 - cp's OEIS frontend

A300242 Filter sequence combining gcd(n,sigma(n)) and gcd(n,phi(n)), (A009194 and A009195).

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

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

cp's OEIS Frontend

A300242 Filter sequence combining gcd(n,sigma(n)) and gcd(n,phi(n)), (A009194 and A009195).

Table of values

List of values

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

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

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