A285182 - cp's OEIS frontend

A285182 L = A132468(n) = A048669(n)-1 is the length of the longest run of consecutive numbers that have a common factor with n; a(n) = smallest k >= 0 which starts such a run.

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

[0, 0, 0, 0, 2, 0, 0, 0, 4, 0, 2, 0, 6, 5, 0, 0, 2, 0, 4, 6, 10, 0, 2, 0, 12, 0, 6, 0, 2, 0, 0, 11, 16, 14, 2, 0, 18, 12, 4, 0, 6, 0, 10, 5, 22, 0, 2, 0, 4, 17, 12, 0, 2, 10, 6, 18, 28, 0, 2, 0, 30, 6, 0, 25, 8, 0, 16, 23, 4, 0, 2, 0, 36, 5, 18, 21, 12, 0, 4, 0, 40, 0, 6, 34, 42, 29, 10, 0, 2, 13, 22, 30]

cp's OEIS Frontend

A285182 L = A132468(n) = A048669(n)-1 is the length of the longest run of consecutive numbers that have a common factor with n; a(n) = smallest k >= 0 which starts such a run.

Table of values

List of values

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

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

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