A253388 - cp's OEIS frontend

A253388 Numbers n such that the number of divisors of n is the product of two distinct primes.

n	a(n)
1	12
2	18
3	20
4	28
5	32
6	44
7	45
8	48
9	50
10	52
11	63
12	68
13	75
14	76
15	80
16	92
17	98
18	99
19	112
20	116
21	117
22	124
23	144
24	147
25	148
26	153
27	162
28	164
29	171
30	172
31	175
32	176
33	188
34	192
35	207
36	208
37	212
38	236
39	242
40	243
41	244
42	245
43	261
44	268
45	272
46	275
47	279
48	284
49	292
50	304
51	316
52	320
53	324
54	325
55	332
56	333

[12, 18, 20, 28, 32, 44, 45, 48, 50, 52, 63, 68, 75, 76, 80, 92, 98, 99, 112, 116, 117, 124, 144, 147, 148, 153, 162, 164, 171, 172, 175, 176, 188, 192, 207, 208, 212, 236, 242, 243, 244, 245, 261, 268, 272, 275, 279, 284, 292, 304, 316, 320, 324, 325, 332, 333]

cp's OEIS Frontend

A253388 Numbers n such that the number of divisors of n is the product of two distinct primes.

Table of values

List of values

n	a(n)
1	12
2	18
3	20
4	28
5	32
6	44
7	45
8	48
9	50
10	52
11	63
12	68
13	75
14	76
15	80
16	92
17	98
18	99
19	112
20	116
21	117
22	124
23	144
24	147
25	148
26	153
27	162
28	164
29	171
30	172
31	175
32	176
33	188
34	192
35	207
36	208
37	212
38	236
39	242
40	243
41	244
42	245
43	261
44	268
45	272
46	275
47	279
48	284
49	292
50	304
51	316
52	320
53	324
54	325
55	332
56	333

n	a(n)
1	12
2	18
3	20
4	28
5	32
6	44
7	45
8	48
9	50
10	52
11	63
12	68
13	75
14	76
15	80
16	92
17	98
18	99
19	112
20	116
21	117
22	124
23	144
24	147
25	148
26	153
27	162
28	164
29	171
30	172
31	175
32	176
33	188
34	192
35	207
36	208
37	212
38	236
39	242
40	243
41	244
42	245
43	261
44	268
45	272
46	275
47	279
48	284
49	292
50	304
51	316
52	320
53	324
54	325
55	332
56	333

n	a(n)
1	12
2	18
3	20
4	28
5	32
6	44
7	45
8	48
9	50
10	52
11	63
12	68
13	75
14	76
15	80
16	92
17	98
18	99
19	112
20	116
21	117
22	124
23	144
24	147
25	148
26	153
27	162
28	164
29	171
30	172
31	175
32	176
33	188
34	192
35	207
36	208
37	212
38	236
39	242
40	243
41	244
42	245
43	261
44	268
45	272
46	275
47	279
48	284
49	292
50	304
51	316
52	320
53	324
54	325
55	332
56	333