A363504 - cp's OEIS frontend

A363504 a(1) = 1, a(2) = 2; for n > 2, a(n) is the smallest positive number that has not yet appeared that is a multiple of prime(Omega(a(n-1))).

n	a(n)
1	1
2	2
3	4
4	3
5	6
6	9
7	12
8	5
9	8
10	10
11	15
12	18
13	20
14	25
15	21
16	24
17	7
18	14
19	27
20	30
21	35
22	33
23	36
24	28
25	40
26	42
27	45
28	50
29	55
30	39
31	48
32	11
33	16
34	49
35	51
36	54
37	56
38	63
39	60
40	70
41	65
42	57
43	66
44	75
45	80
46	22
47	69
48	72
49	44
50	85
51	78
52	90
53	77
54	81
55	84
56	91
57	87
58	93
59	96
60	13
61	26
62	99
63	95
64	102
65	100
66	98
67	105
68	110
69	115
70	108
71	88
72	112
73	121
74	111

[1, 2, 4, 3, 6, 9, 12, 5, 8, 10, 15, 18, 20, 25, 21, 24, 7, 14, 27, 30, 35, 33, 36, 28, 40, 42, 45, 50, 55, 39, 48, 11, 16, 49, 51, 54, 56, 63, 60, 70, 65, 57, 66, 75, 80, 22, 69, 72, 44, 85, 78, 90, 77, 81, 84, 91, 87, 93, 96, 13, 26, 99, 95, 102, 100, 98, 105, 110, 115, 108, 88, 112, 121, 111]

cp's OEIS Frontend

A363504 a(1) = 1, a(2) = 2; for n > 2, a(n) is the smallest positive number that has not yet appeared that is a multiple of prime(Omega(a(n-1))).

Table of values

List of values

n	a(n)
1	1
2	2
3	4
4	3
5	6
6	9
7	12
8	5
9	8
10	10
11	15
12	18
13	20
14	25
15	21
16	24
17	7
18	14
19	27
20	30
21	35
22	33
23	36
24	28
25	40
26	42
27	45
28	50
29	55
30	39
31	48
32	11
33	16
34	49
35	51
36	54
37	56
38	63
39	60
40	70
41	65
42	57
43	66
44	75
45	80
46	22
47	69
48	72
49	44
50	85
51	78
52	90
53	77
54	81
55	84
56	91
57	87
58	93
59	96
60	13
61	26
62	99
63	95
64	102
65	100
66	98
67	105
68	110
69	115
70	108
71	88
72	112
73	121
74	111

n	a(n)
1	1
2	2
3	4
4	3
5	6
6	9
7	12
8	5
9	8
10	10
11	15
12	18
13	20
14	25
15	21
16	24
17	7
18	14
19	27
20	30
21	35
22	33
23	36
24	28
25	40
26	42
27	45
28	50
29	55
30	39
31	48
32	11
33	16
34	49
35	51
36	54
37	56
38	63
39	60
40	70
41	65
42	57
43	66
44	75
45	80
46	22
47	69
48	72
49	44
50	85
51	78
52	90
53	77
54	81
55	84
56	91
57	87
58	93
59	96
60	13
61	26
62	99
63	95
64	102
65	100
66	98
67	105
68	110
69	115
70	108
71	88
72	112
73	121
74	111

n	a(n)
1	1
2	2
3	4
4	3
5	6
6	9
7	12
8	5
9	8
10	10
11	15
12	18
13	20
14	25
15	21
16	24
17	7
18	14
19	27
20	30
21	35
22	33
23	36
24	28
25	40
26	42
27	45
28	50
29	55
30	39
31	48
32	11
33	16
34	49
35	51
36	54
37	56
38	63
39	60
40	70
41	65
42	57
43	66
44	75
45	80
46	22
47	69
48	72
49	44
50	85
51	78
52	90
53	77
54	81
55	84
56	91
57	87
58	93
59	96
60	13
61	26
62	99
63	95
64	102
65	100
66	98
67	105
68	110
69	115
70	108
71	88
72	112
73	121
74	111