A379548 - cp's OEIS frontend

A379548 a(1) = 1. For n > 1, a(n) is the earliest novel squarefree number divisible by the smallest prime which does not divide a(n-1).

n	a(n)
1	1
2	2
3	3
4	6
5	5
6	10
7	15
8	14
9	21
10	22
11	30
12	7
13	26
14	33
15	34
16	39
17	38
18	42
19	35
20	46
21	51
22	58
23	57
24	62
25	66
26	55
27	70
28	69
29	74
30	78
31	65
32	82
33	87
34	86
35	93
36	94
37	102
38	85
39	106
40	105
41	110
42	111
43	114
44	95
45	118
46	123
47	122
48	129
49	130
50	138
51	115
52	134
53	141
54	142
55	159
56	146
57	165
58	154
59	174
60	145
61	158

[1, 2, 3, 6, 5, 10, 15, 14, 21, 22, 30, 7, 26, 33, 34, 39, 38, 42, 35, 46, 51, 58, 57, 62, 66, 55, 70, 69, 74, 78, 65, 82, 87, 86, 93, 94, 102, 85, 106, 105, 110, 111, 114, 95, 118, 123, 122, 129, 130, 138, 115, 134, 141, 142, 159, 146, 165, 154, 174, 145, 158]

cp's OEIS Frontend

A379548 a(1) = 1. For n > 1, a(n) is the earliest novel squarefree number divisible by the smallest prime which does not divide a(n-1).

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	6
5	5
6	10
7	15
8	14
9	21
10	22
11	30
12	7
13	26
14	33
15	34
16	39
17	38
18	42
19	35
20	46
21	51
22	58
23	57
24	62
25	66
26	55
27	70
28	69
29	74
30	78
31	65
32	82
33	87
34	86
35	93
36	94
37	102
38	85
39	106
40	105
41	110
42	111
43	114
44	95
45	118
46	123
47	122
48	129
49	130
50	138
51	115
52	134
53	141
54	142
55	159
56	146
57	165
58	154
59	174
60	145
61	158

n	a(n)
1	1
2	2
3	3
4	6
5	5
6	10
7	15
8	14
9	21
10	22
11	30
12	7
13	26
14	33
15	34
16	39
17	38
18	42
19	35
20	46
21	51
22	58
23	57
24	62
25	66
26	55
27	70
28	69
29	74
30	78
31	65
32	82
33	87
34	86
35	93
36	94
37	102
38	85
39	106
40	105
41	110
42	111
43	114
44	95
45	118
46	123
47	122
48	129
49	130
50	138
51	115
52	134
53	141
54	142
55	159
56	146
57	165
58	154
59	174
60	145
61	158

n	a(n)
1	1
2	2
3	3
4	6
5	5
6	10
7	15
8	14
9	21
10	22
11	30
12	7
13	26
14	33
15	34
16	39
17	38
18	42
19	35
20	46
21	51
22	58
23	57
24	62
25	66
26	55
27	70
28	69
29	74
30	78
31	65
32	82
33	87
34	86
35	93
36	94
37	102
38	85
39	106
40	105
41	110
42	111
43	114
44	95
45	118
46	123
47	122
48	129
49	130
50	138
51	115
52	134
53	141
54	142
55	159
56	146
57	165
58	154
59	174
60	145
61	158