A351495 - cp's OEIS frontend

A351495 a(1) = 1, for n > 1, a(n) is the smallest positive number that has not yet appeared that is a multiple of the smallest prime that does not divide a(n-1).

n	a(n)
1	1
2	2
3	3
4	4
5	6
6	5
7	8
8	9
9	10
10	12
11	15
12	14
13	18
14	20
15	21
16	16
17	24
18	25
19	22
20	27
21	26
22	30
23	7
24	28
25	33
26	32
27	36
28	35
29	34
30	39
31	38
32	42
33	40
34	45
35	44
36	48
37	50
38	51
39	46
40	54
41	55
42	52
43	57
44	56
45	60
46	49
47	58
48	63
49	62
50	66
51	65
52	64
53	69
54	68
55	72
56	70
57	75
58	74
59	78
60	80
61	81
62	76
63	84
64	85
65	82
66	87
67	86
68	90
69	77
70	88
71	93
72	92
73	96
74	95
75	94

[1, 2, 3, 4, 6, 5, 8, 9, 10, 12, 15, 14, 18, 20, 21, 16, 24, 25, 22, 27, 26, 30, 7, 28, 33, 32, 36, 35, 34, 39, 38, 42, 40, 45, 44, 48, 50, 51, 46, 54, 55, 52, 57, 56, 60, 49, 58, 63, 62, 66, 65, 64, 69, 68, 72, 70, 75, 74, 78, 80, 81, 76, 84, 85, 82, 87, 86, 90, 77, 88, 93, 92, 96, 95, 94]

cp's OEIS Frontend

A351495 a(1) = 1, for n > 1, a(n) is the smallest positive number that has not yet appeared that is a multiple of the smallest prime that does not divide a(n-1).

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	6
6	5
7	8
8	9
9	10
10	12
11	15
12	14
13	18
14	20
15	21
16	16
17	24
18	25
19	22
20	27
21	26
22	30
23	7
24	28
25	33
26	32
27	36
28	35
29	34
30	39
31	38
32	42
33	40
34	45
35	44
36	48
37	50
38	51
39	46
40	54
41	55
42	52
43	57
44	56
45	60
46	49
47	58
48	63
49	62
50	66
51	65
52	64
53	69
54	68
55	72
56	70
57	75
58	74
59	78
60	80
61	81
62	76
63	84
64	85
65	82
66	87
67	86
68	90
69	77
70	88
71	93
72	92
73	96
74	95
75	94

n	a(n)
1	1
2	2
3	3
4	4
5	6
6	5
7	8
8	9
9	10
10	12
11	15
12	14
13	18
14	20
15	21
16	16
17	24
18	25
19	22
20	27
21	26
22	30
23	7
24	28
25	33
26	32
27	36
28	35
29	34
30	39
31	38
32	42
33	40
34	45
35	44
36	48
37	50
38	51
39	46
40	54
41	55
42	52
43	57
44	56
45	60
46	49
47	58
48	63
49	62
50	66
51	65
52	64
53	69
54	68
55	72
56	70
57	75
58	74
59	78
60	80
61	81
62	76
63	84
64	85
65	82
66	87
67	86
68	90
69	77
70	88
71	93
72	92
73	96
74	95
75	94

n	a(n)
1	1
2	2
3	3
4	4
5	6
6	5
7	8
8	9
9	10
10	12
11	15
12	14
13	18
14	20
15	21
16	16
17	24
18	25
19	22
20	27
21	26
22	30
23	7
24	28
25	33
26	32
27	36
28	35
29	34
30	39
31	38
32	42
33	40
34	45
35	44
36	48
37	50
38	51
39	46
40	54
41	55
42	52
43	57
44	56
45	60
46	49
47	58
48	63
49	62
50	66
51	65
52	64
53	69
54	68
55	72
56	70
57	75
58	74
59	78
60	80
61	81
62	76
63	84
64	85
65	82
66	87
67	86
68	90
69	77
70	88
71	93
72	92
73	96
74	95
75	94