A072588 - cp's OEIS frontend

A072588 Numbers having at least one prime factor with an odd and one with an even exponent.

n	a(n)
1	12
2	18
3	20
4	28
5	44
6	45
7	48
8	50
9	52
10	60
11	63
12	68
13	72
14	75
15	76
16	80
17	84
18	90
19	92
20	98
21	99
22	108
23	112
24	116
25	117
26	124
27	126
28	132
29	140
30	147
31	148
32	150
33	153
34	156
35	162
36	164
37	171
38	172
39	175
40	176
41	180
42	188
43	192
44	198
45	200
46	204
47	207
48	208
49	212
50	220
51	228
52	234
53	236
54	240
55	242
56	244

[12, 18, 20, 28, 44, 45, 48, 50, 52, 60, 63, 68, 72, 75, 76, 80, 84, 90, 92, 98, 99, 108, 112, 116, 117, 124, 126, 132, 140, 147, 148, 150, 153, 156, 162, 164, 171, 172, 175, 176, 180, 188, 192, 198, 200, 204, 207, 208, 212, 220, 228, 234, 236, 240, 242, 244]

cp's OEIS Frontend

A072588 Numbers having at least one prime factor with an odd and one with an even exponent.

Table of values

List of values

n	a(n)
1	12
2	18
3	20
4	28
5	44
6	45
7	48
8	50
9	52
10	60
11	63
12	68
13	72
14	75
15	76
16	80
17	84
18	90
19	92
20	98
21	99
22	108
23	112
24	116
25	117
26	124
27	126
28	132
29	140
30	147
31	148
32	150
33	153
34	156
35	162
36	164
37	171
38	172
39	175
40	176
41	180
42	188
43	192
44	198
45	200
46	204
47	207
48	208
49	212
50	220
51	228
52	234
53	236
54	240
55	242
56	244

n	a(n)
1	12
2	18
3	20
4	28
5	44
6	45
7	48
8	50
9	52
10	60
11	63
12	68
13	72
14	75
15	76
16	80
17	84
18	90
19	92
20	98
21	99
22	108
23	112
24	116
25	117
26	124
27	126
28	132
29	140
30	147
31	148
32	150
33	153
34	156
35	162
36	164
37	171
38	172
39	175
40	176
41	180
42	188
43	192
44	198
45	200
46	204
47	207
48	208
49	212
50	220
51	228
52	234
53	236
54	240
55	242
56	244

n	a(n)
1	12
2	18
3	20
4	28
5	44
6	45
7	48
8	50
9	52
10	60
11	63
12	68
13	72
14	75
15	76
16	80
17	84
18	90
19	92
20	98
21	99
22	108
23	112
24	116
25	117
26	124
27	126
28	132
29	140
30	147
31	148
32	150
33	153
34	156
35	162
36	164
37	171
38	172
39	175
40	176
41	180
42	188
43	192
44	198
45	200
46	204
47	207
48	208
49	212
50	220
51	228
52	234
53	236
54	240
55	242
56	244