A325960 - cp's OEIS frontend

A325960 a(n) is k-n for the least k >= n+(A020639(n)-1) such that n-k and n-(sigma(n)-k) are relatively prime, or 0 if no such k <= sigma(n) exists.

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

[0, 1, 0, 1, 0, 1, 0, 1, 2, 1, 0, 1, 0, 1, 5, 1, 0, 1, 0, 1, 3, 1, 0, 1, 4, 1, 3, 1, 0, 1, 0, 1, 5, 1, 5, 1, 0, 1, 3, 1, 0, 1, 0, 1, 5, 1, 0, 1, 6, 1, 7, 1, 0, 1, 5, 1, 3, 1, 0, 1, 0, 1, 3, 1, 5, 1, 0, 1, 5, 1, 0, 1, 0, 1, 3, 1, 7, 1, 0, 1, 2, 1, 0, 1, 5, 1, 5, 1, 0, 1, 9, 1, 3, 1, 9, 1, 0, 1, 5, 1, 0, 1, 0, 1, 5]

cp's OEIS Frontend

A325960 a(n) is k-n for the least k >= n+(A020639(n)-1) such that n-k and n-(sigma(n)-k) are relatively prime, or 0 if no such k <= sigma(n) exists.

Table of values

List of values

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

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

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