A365117 - cp's OEIS frontend

A365117 a(1) = 1. Thereafter a(n) is the least novel multiple m of the smallest prime which does not divide a(n-1) and such that m is coprime to a(n-1).

n	a(n)
1	1
2	2
3	3
4	4
5	9
6	8
7	15
8	14
9	27
10	10
11	21
12	16
13	33
14	20
15	39
16	22
17	45
18	26
19	51
20	28
21	57
22	32
23	63
24	34
25	69
26	38
27	75
28	44
29	81
30	40
31	87
32	46
33	93
34	50
35	99
36	52
37	105
38	58
39	111
40	56
41	117
42	62
43	123
44	64
45	129
46	68
47	135
48	74
49	141
50	70
51	153
52	76
53	147
54	80
55	159
56	82
57	165
58	86
59	171
60	88
61	177
62	92
63	183
64	94

[1, 2, 3, 4, 9, 8, 15, 14, 27, 10, 21, 16, 33, 20, 39, 22, 45, 26, 51, 28, 57, 32, 63, 34, 69, 38, 75, 44, 81, 40, 87, 46, 93, 50, 99, 52, 105, 58, 111, 56, 117, 62, 123, 64, 129, 68, 135, 74, 141, 70, 153, 76, 147, 80, 159, 82, 165, 86, 171, 88, 177, 92, 183, 94]

cp's OEIS Frontend

A365117 a(1) = 1. Thereafter a(n) is the least novel multiple m of the smallest prime which does not divide a(n-1) and such that m is coprime to a(n-1).

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	9
6	8
7	15
8	14
9	27
10	10
11	21
12	16
13	33
14	20
15	39
16	22
17	45
18	26
19	51
20	28
21	57
22	32
23	63
24	34
25	69
26	38
27	75
28	44
29	81
30	40
31	87
32	46
33	93
34	50
35	99
36	52
37	105
38	58
39	111
40	56
41	117
42	62
43	123
44	64
45	129
46	68
47	135
48	74
49	141
50	70
51	153
52	76
53	147
54	80
55	159
56	82
57	165
58	86
59	171
60	88
61	177
62	92
63	183
64	94

n	a(n)
1	1
2	2
3	3
4	4
5	9
6	8
7	15
8	14
9	27
10	10
11	21
12	16
13	33
14	20
15	39
16	22
17	45
18	26
19	51
20	28
21	57
22	32
23	63
24	34
25	69
26	38
27	75
28	44
29	81
30	40
31	87
32	46
33	93
34	50
35	99
36	52
37	105
38	58
39	111
40	56
41	117
42	62
43	123
44	64
45	129
46	68
47	135
48	74
49	141
50	70
51	153
52	76
53	147
54	80
55	159
56	82
57	165
58	86
59	171
60	88
61	177
62	92
63	183
64	94

n	a(n)
1	1
2	2
3	3
4	4
5	9
6	8
7	15
8	14
9	27
10	10
11	21
12	16
13	33
14	20
15	39
16	22
17	45
18	26
19	51
20	28
21	57
22	32
23	63
24	34
25	69
26	38
27	75
28	44
29	81
30	40
31	87
32	46
33	93
34	50
35	99
36	52
37	105
38	58
39	111
40	56
41	117
42	62
43	123
44	64
45	129
46	68
47	135
48	74
49	141
50	70
51	153
52	76
53	147
54	80
55	159
56	82
57	165
58	86
59	171
60	88
61	177
62	92
63	183
64	94