A361321 - cp's OEIS frontend

A361321 Lexicographically earliest infinite sequence of distinct elements of A000469 such that, for n > 2, a(n) has a common factor with a(n-1) but not with a(n-2).

n	a(n)
1	1
2	6
3	10
4	35
5	21
6	33
7	22
8	14
9	91
10	39
11	15
12	55
13	77
14	42
15	26
16	65
17	85
18	34
19	38
20	57
21	51
22	119
23	70
24	30
25	69
26	161
27	133
28	95
29	110
30	46
31	299
32	143
33	66
34	58
35	145
36	105
37	78
38	62
39	155
40	115
41	138
42	74
43	185
44	165
45	87
46	203
47	154
48	82
49	123
50	93
51	217
52	182
53	86
54	129
55	111
56	259
57	238
58	94
59	141
60	159

[1, 6, 10, 35, 21, 33, 22, 14, 91, 39, 15, 55, 77, 42, 26, 65, 85, 34, 38, 57, 51, 119, 70, 30, 69, 161, 133, 95, 110, 46, 299, 143, 66, 58, 145, 105, 78, 62, 155, 115, 138, 74, 185, 165, 87, 203, 154, 82, 123, 93, 217, 182, 86, 129, 111, 259, 238, 94, 141, 159]

cp's OEIS Frontend

A361321 Lexicographically earliest infinite sequence of distinct elements of A000469 such that, for n > 2, a(n) has a common factor with a(n-1) but not with a(n-2).

Table of values

List of values

n	a(n)
1	1
2	6
3	10
4	35
5	21
6	33
7	22
8	14
9	91
10	39
11	15
12	55
13	77
14	42
15	26
16	65
17	85
18	34
19	38
20	57
21	51
22	119
23	70
24	30
25	69
26	161
27	133
28	95
29	110
30	46
31	299
32	143
33	66
34	58
35	145
36	105
37	78
38	62
39	155
40	115
41	138
42	74
43	185
44	165
45	87
46	203
47	154
48	82
49	123
50	93
51	217
52	182
53	86
54	129
55	111
56	259
57	238
58	94
59	141
60	159

n	a(n)
1	1
2	6
3	10
4	35
5	21
6	33
7	22
8	14
9	91
10	39
11	15
12	55
13	77
14	42
15	26
16	65
17	85
18	34
19	38
20	57
21	51
22	119
23	70
24	30
25	69
26	161
27	133
28	95
29	110
30	46
31	299
32	143
33	66
34	58
35	145
36	105
37	78
38	62
39	155
40	115
41	138
42	74
43	185
44	165
45	87
46	203
47	154
48	82
49	123
50	93
51	217
52	182
53	86
54	129
55	111
56	259
57	238
58	94
59	141
60	159

n	a(n)
1	1
2	6
3	10
4	35
5	21
6	33
7	22
8	14
9	91
10	39
11	15
12	55
13	77
14	42
15	26
16	65
17	85
18	34
19	38
20	57
21	51
22	119
23	70
24	30
25	69
26	161
27	133
28	95
29	110
30	46
31	299
32	143
33	66
34	58
35	145
36	105
37	78
38	62
39	155
40	115
41	138
42	74
43	185
44	165
45	87
46	203
47	154
48	82
49	123
50	93
51	217
52	182
53	86
54	129
55	111
56	259
57	238
58	94
59	141
60	159