A207005 - cp's OEIS frontend

A207005 Numbers k such that omega(k) = omega(k - omega(k)) where omega(k) is the number of distinct primes dividing k.

n	a(n)
1	1
2	3
3	4
4	5
5	8
6	9
7	12
8	14
9	17
10	20
11	22
12	24
13	26
14	28
15	32
16	35
17	36
18	38
19	40
20	46
21	48
22	50
23	52
24	54
25	56
26	57
27	58
28	65
29	74
30	76
31	77
32	82
33	87
34	88
35	93
36	94
37	95
38	96
39	98
40	100
41	105
42	106
43	108
44	117
45	118
46	119
47	124
48	128
49	135
50	136
51	143
52	144
53	145
54	146
55	147
56	148
57	155
58	160
59	161
60	162
61	164

[1, 3, 4, 5, 8, 9, 12, 14, 17, 20, 22, 24, 26, 28, 32, 35, 36, 38, 40, 46, 48, 50, 52, 54, 56, 57, 58, 65, 74, 76, 77, 82, 87, 88, 93, 94, 95, 96, 98, 100, 105, 106, 108, 117, 118, 119, 124, 128, 135, 136, 143, 144, 145, 146, 147, 148, 155, 160, 161, 162, 164]

cp's OEIS Frontend

A207005 Numbers k such that omega(k) = omega(k - omega(k)) where omega(k) is the number of distinct primes dividing k.

Table of values

List of values

n	a(n)
1	1
2	3
3	4
4	5
5	8
6	9
7	12
8	14
9	17
10	20
11	22
12	24
13	26
14	28
15	32
16	35
17	36
18	38
19	40
20	46
21	48
22	50
23	52
24	54
25	56
26	57
27	58
28	65
29	74
30	76
31	77
32	82
33	87
34	88
35	93
36	94
37	95
38	96
39	98
40	100
41	105
42	106
43	108
44	117
45	118
46	119
47	124
48	128
49	135
50	136
51	143
52	144
53	145
54	146
55	147
56	148
57	155
58	160
59	161
60	162
61	164

n	a(n)
1	1
2	3
3	4
4	5
5	8
6	9
7	12
8	14
9	17
10	20
11	22
12	24
13	26
14	28
15	32
16	35
17	36
18	38
19	40
20	46
21	48
22	50
23	52
24	54
25	56
26	57
27	58
28	65
29	74
30	76
31	77
32	82
33	87
34	88
35	93
36	94
37	95
38	96
39	98
40	100
41	105
42	106
43	108
44	117
45	118
46	119
47	124
48	128
49	135
50	136
51	143
52	144
53	145
54	146
55	147
56	148
57	155
58	160
59	161
60	162
61	164

n	a(n)
1	1
2	3
3	4
4	5
5	8
6	9
7	12
8	14
9	17
10	20
11	22
12	24
13	26
14	28
15	32
16	35
17	36
18	38
19	40
20	46
21	48
22	50
23	52
24	54
25	56
26	57
27	58
28	65
29	74
30	76
31	77
32	82
33	87
34	88
35	93
36	94
37	95
38	96
39	98
40	100
41	105
42	106
43	108
44	117
45	118
46	119
47	124
48	128
49	135
50	136
51	143
52	144
53	145
54	146
55	147
56	148
57	155
58	160
59	161
60	162
61	164