A214229 - cp's OEIS frontend

A214229 a(n) equals gcd(r,2n+1) where r is 1 + (A143608(i+1) mod (2n+1)) where A143608(i) is the first zero mod 2n+1 other than 0.

n	a(n)
1	3
2	5
3	1
4	9
5	11
6	13
7	3
8	17
9	19
10	3
11	1
12	25
13	27
14	29
15	1
16	33
17	5
18	37
19	3
20	1
21	43
22	9
23	1
24	1
25	17
26	53
27	11
28	57
29	59
30	61
31	9
32	65
33	67
34	3
35	1
36	73
37	3
38	11
39	1
40	81
41	83
42	17
43	3
44	89
45	13
46	3
47	19
48	97
49	99
50	101
51	1
52	3
53	107
54	109
55	3
56	113
57	5
58	9
59	17
60	121
61	3
62	125
63	1
64	129
65	131
66	19

[3, 5, 1, 9, 11, 13, 3, 17, 19, 3, 1, 25, 27, 29, 1, 33, 5, 37, 3, 1, 43, 9, 1, 1, 17, 53, 11, 57, 59, 61, 9, 65, 67, 3, 1, 73, 3, 11, 1, 81, 83, 17, 3, 89, 13, 3, 19, 97, 99, 101, 1, 3, 107, 109, 3, 113, 5, 9, 17, 121, 3, 125, 1, 129, 131, 19]

cp's OEIS Frontend

A214229 a(n) equals gcd(r,2n+1) where r is 1 + (A143608(i+1) mod (2n+1)) where A143608(i) is the first zero mod 2n+1 other than 0.

Table of values

List of values

n	a(n)
1	3
2	5
3	1
4	9
5	11
6	13
7	3
8	17
9	19
10	3
11	1
12	25
13	27
14	29
15	1
16	33
17	5
18	37
19	3
20	1
21	43
22	9
23	1
24	1
25	17
26	53
27	11
28	57
29	59
30	61
31	9
32	65
33	67
34	3
35	1
36	73
37	3
38	11
39	1
40	81
41	83
42	17
43	3
44	89
45	13
46	3
47	19
48	97
49	99
50	101
51	1
52	3
53	107
54	109
55	3
56	113
57	5
58	9
59	17
60	121
61	3
62	125
63	1
64	129
65	131
66	19

n	a(n)
1	3
2	5
3	1
4	9
5	11
6	13
7	3
8	17
9	19
10	3
11	1
12	25
13	27
14	29
15	1
16	33
17	5
18	37
19	3
20	1
21	43
22	9
23	1
24	1
25	17
26	53
27	11
28	57
29	59
30	61
31	9
32	65
33	67
34	3
35	1
36	73
37	3
38	11
39	1
40	81
41	83
42	17
43	3
44	89
45	13
46	3
47	19
48	97
49	99
50	101
51	1
52	3
53	107
54	109
55	3
56	113
57	5
58	9
59	17
60	121
61	3
62	125
63	1
64	129
65	131
66	19

cp's OEIS Frontend

A214229 a(n) equals gcd(r,2*n+1) where r is 1 + (A143608(i+1) mod (2*n+1)) where A143608(i) is the first zero mod 2n+1 other than 0.

Table of values

List of values

A214229 a(n) equals gcd(r,2n+1) where r is 1 + (A143608(i+1) mod (2n+1)) where A143608(i) is the first zero mod 2n+1 other than 0.

n	a(n)
1	3
2	5
3	1
4	9
5	11
6	13
7	3
8	17
9	19
10	3
11	1
12	25
13	27
14	29
15	1
16	33
17	5
18	37
19	3
20	1
21	43
22	9
23	1
24	1
25	17
26	53
27	11
28	57
29	59
30	61
31	9
32	65
33	67
34	3
35	1
36	73
37	3
38	11
39	1
40	81
41	83
42	17
43	3
44	89
45	13
46	3
47	19
48	97
49	99
50	101
51	1
52	3
53	107
54	109
55	3
56	113
57	5
58	9
59	17
60	121
61	3
62	125
63	1
64	129
65	131
66	19