A373350 - cp's OEIS frontend

A373350 a(1) = 1, a(2) = 2; for n > 2, a(n) is the smallest unused positive number such that omega(a(n)) does not equal omega(a(n-1)) or omega(a(n-2)).

n	a(n)
1	1
2	2
3	6
4	30
5	3
6	10
7	42
8	4
9	12
10	60
11	5
12	14
13	66
14	7
15	15
16	70
17	8
18	18
19	78
20	9
21	20
22	84
23	11
24	21
25	90
26	13
27	22
28	102
29	16
30	24
31	105
32	17
33	26
34	110
35	19
36	28
37	114
38	23
39	33
40	120
41	25
42	34
43	126
44	27
45	35
46	130
47	29
48	36
49	132
50	31
51	38
52	138
53	32
54	39
55	140
56	37
57	40
58	150
59	41
60	44
61	154
62	43
63	45
64	156
65	47
66	46
67	165
68	49
69	48
70	168
71	53
72	50
73	170
74	59

[1, 2, 6, 30, 3, 10, 42, 4, 12, 60, 5, 14, 66, 7, 15, 70, 8, 18, 78, 9, 20, 84, 11, 21, 90, 13, 22, 102, 16, 24, 105, 17, 26, 110, 19, 28, 114, 23, 33, 120, 25, 34, 126, 27, 35, 130, 29, 36, 132, 31, 38, 138, 32, 39, 140, 37, 40, 150, 41, 44, 154, 43, 45, 156, 47, 46, 165, 49, 48, 168, 53, 50, 170, 59]

cp's OEIS Frontend

A373350 a(1) = 1, a(2) = 2; for n > 2, a(n) is the smallest unused positive number such that omega(a(n)) does not equal omega(a(n-1)) or omega(a(n-2)).

Table of values

List of values

n	a(n)
1	1
2	2
3	6
4	30
5	3
6	10
7	42
8	4
9	12
10	60
11	5
12	14
13	66
14	7
15	15
16	70
17	8
18	18
19	78
20	9
21	20
22	84
23	11
24	21
25	90
26	13
27	22
28	102
29	16
30	24
31	105
32	17
33	26
34	110
35	19
36	28
37	114
38	23
39	33
40	120
41	25
42	34
43	126
44	27
45	35
46	130
47	29
48	36
49	132
50	31
51	38
52	138
53	32
54	39
55	140
56	37
57	40
58	150
59	41
60	44
61	154
62	43
63	45
64	156
65	47
66	46
67	165
68	49
69	48
70	168
71	53
72	50
73	170
74	59

n	a(n)
1	1
2	2
3	6
4	30
5	3
6	10
7	42
8	4
9	12
10	60
11	5
12	14
13	66
14	7
15	15
16	70
17	8
18	18
19	78
20	9
21	20
22	84
23	11
24	21
25	90
26	13
27	22
28	102
29	16
30	24
31	105
32	17
33	26
34	110
35	19
36	28
37	114
38	23
39	33
40	120
41	25
42	34
43	126
44	27
45	35
46	130
47	29
48	36
49	132
50	31
51	38
52	138
53	32
54	39
55	140
56	37
57	40
58	150
59	41
60	44
61	154
62	43
63	45
64	156
65	47
66	46
67	165
68	49
69	48
70	168
71	53
72	50
73	170
74	59

n	a(n)
1	1
2	2
3	6
4	30
5	3
6	10
7	42
8	4
9	12
10	60
11	5
12	14
13	66
14	7
15	15
16	70
17	8
18	18
19	78
20	9
21	20
22	84
23	11
24	21
25	90
26	13
27	22
28	102
29	16
30	24
31	105
32	17
33	26
34	110
35	19
36	28
37	114
38	23
39	33
40	120
41	25
42	34
43	126
44	27
45	35
46	130
47	29
48	36
49	132
50	31
51	38
52	138
53	32
54	39
55	140
56	37
57	40
58	150
59	41
60	44
61	154
62	43
63	45
64	156
65	47
66	46
67	165
68	49
69	48
70	168
71	53
72	50
73	170
74	59