A050700 - cp's OEIS frontend

A050700 Composite numbers n smaller than their decimal reverse but having the same number of prime factors.

n	a(n)
1	15
2	26
3	39
4	49
5	58
6	115
7	117
8	122
9	123
10	126
11	129
12	143
13	147
14	155
15	158
16	159
17	165
18	169
19	177
20	178
21	183
22	185
23	187
24	203
25	205
26	225
27	226
28	244
29	246
30	265
31	285
32	286
33	289
34	294
35	314
36	315
37	319
38	326
39	327
40	329
41	335
42	338
43	339
44	355
45	366
46	369
47	394
48	398
49	406
50	415
51	418
52	425

[15, 26, 39, 49, 58, 115, 117, 122, 123, 126, 129, 143, 147, 155, 158, 159, 165, 169, 177, 178, 183, 185, 187, 203, 205, 225, 226, 244, 246, 265, 285, 286, 289, 294, 314, 315, 319, 326, 327, 329, 335, 338, 339, 355, 366, 369, 394, 398, 406, 415, 418, 425]

cp's OEIS Frontend

A050700 Composite numbers n smaller than their decimal reverse but having the same number of prime factors.

Table of values

List of values

n	a(n)
1	15
2	26
3	39
4	49
5	58
6	115
7	117
8	122
9	123
10	126
11	129
12	143
13	147
14	155
15	158
16	159
17	165
18	169
19	177
20	178
21	183
22	185
23	187
24	203
25	205
26	225
27	226
28	244
29	246
30	265
31	285
32	286
33	289
34	294
35	314
36	315
37	319
38	326
39	327
40	329
41	335
42	338
43	339
44	355
45	366
46	369
47	394
48	398
49	406
50	415
51	418
52	425

n	a(n)
1	15
2	26
3	39
4	49
5	58
6	115
7	117
8	122
9	123
10	126
11	129
12	143
13	147
14	155
15	158
16	159
17	165
18	169
19	177
20	178
21	183
22	185
23	187
24	203
25	205
26	225
27	226
28	244
29	246
30	265
31	285
32	286
33	289
34	294
35	314
36	315
37	319
38	326
39	327
40	329
41	335
42	338
43	339
44	355
45	366
46	369
47	394
48	398
49	406
50	415
51	418
52	425

n	a(n)
1	15
2	26
3	39
4	49
5	58
6	115
7	117
8	122
9	123
10	126
11	129
12	143
13	147
14	155
15	158
16	159
17	165
18	169
19	177
20	178
21	183
22	185
23	187
24	203
25	205
26	225
27	226
28	244
29	246
30	265
31	285
32	286
33	289
34	294
35	314
36	315
37	319
38	326
39	327
40	329
41	335
42	338
43	339
44	355
45	366
46	369
47	394
48	398
49	406
50	415
51	418
52	425