A326144 - cp's OEIS frontend

A326144 a(n) = gcd(A066503(n), A326143(n)) = gcd(n - A007947(n), sigma(n) - A007947(n) - n).

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

[1, 1, 2, 1, 4, 0, 6, 1, 1, 2, 10, 2, 12, 4, 6, 1, 16, 3, 18, 2, 10, 8, 22, 6, 1, 10, 2, 14, 28, 12, 30, 1, 18, 14, 22, 1, 36, 16, 22, 10, 40, 12, 42, 2, 6, 20, 46, 14, 1, 1, 30, 2, 52, 12, 38, 2, 34, 26, 58, 6, 60, 28, 2, 1, 46, 12, 66, 2, 42, 4, 70, 3, 72, 34, 2, 2, 58, 12, 78, 2, 1, 38, 82, 14, 62, 40, 54, 2, 88, 6, 70, 2]

cp's OEIS Frontend

A326144 a(n) = gcd(A066503(n), A326143(n)) = gcd(n - A007947(n), sigma(n) - A007947(n) - n).

Table of values

List of values

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

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

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