A351559 - cp's OEIS frontend

A351559 a(n) = A048675(gcd(sigma(n), A019565(n))).

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

[0, 2, 1, 0, 1, 2, 1, 0, 0, 2, 3, 8, 9, 2, 3, 0, 1, 2, 1, 0, 1, 2, 3, 0, 0, 10, 1, 8, 5, 2, 1, 0, 1, 2, 3, 32, 1, 6, 1, 0, 9, 2, 1, 8, 33, 2, 3, 0, 0, 2, 3, 0, 1, 6, 3, 0, 1, 2, 3, 8, 1, 2, 33, 0, 1, 2, 65, 0, 1, 2, 3, 0, 1, 2, 1, 12, 1, 10, 5, 0, 16, 2, 3, 0, 1, 18, 7, 0, 1, 2, 9, 8, 1, 2, 7, 0, 1, 2, 35, 0, 65, 2, 33]

cp's OEIS Frontend

A351559 a(n) = A048675(gcd(sigma(n), A019565(n))).

Table of values

List of values

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

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

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