A326062 - cp's OEIS frontend

A326062 a(1) = gcd((sigma(n)-A032742(n))-n, n-A032742(n)), where A032742 gives the largest proper divisor of n.

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

[1, 1, 2, 1, 4, 3, 6, 1, 1, 1, 10, 2, 12, 1, 2, 1, 16, 3, 18, 2, 2, 1, 22, 12, 1, 1, 2, 14, 28, 3, 30, 1, 2, 1, 2, 1, 36, 1, 2, 10, 40, 3, 42, 2, 6, 1, 46, 4, 1, 1, 2, 2, 52, 3, 2, 4, 2, 1, 58, 6, 60, 1, 2, 1, 2, 3, 66, 2, 2, 1, 70, 3, 72, 1, 2, 2, 2, 3, 78, 2, 1, 1, 82, 14, 2, 1, 2, 4, 88, 9, 2, 2, 2, 1, 2, 12, 96, 1, 6, 1, 100, 3, 102, 2, 2]

cp's OEIS Frontend

A326062 a(1) = gcd((sigma(n)-A032742(n))-n, n-A032742(n)), where A032742 gives the largest proper divisor of n.

Table of values

List of values

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

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

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