A280636 - cp's OEIS frontend

A280636 Semiprime numbers whose digit string can be partitioned into three parts such that the product of the first two parts equals the third part.

n	a(n)
1	111
2	122
3	133
4	155
5	166
6	177
7	326
8	339
9	515
10	717
11	818
12	2918
13	3721
14	5315
15	6742
16	7214
17	7642
18	9327
19	9763
20	11111
21	11333
22	11555
23	12929
24	13333
25	13535
26	13565
27	13791
28	13939
29	14114
30	14141
31	14242
32	14545
33	15115
34	15151
35	15353
36	15454
37	15757
38	16161
39	16565

[111, 122, 133, 155, 166, 177, 326, 339, 515, 717, 818, 2918, 3721, 5315, 6742, 7214, 7642, 9327, 9763, 11111, 11333, 11555, 12929, 13333, 13535, 13565, 13791, 13939, 14114, 14141, 14242, 14545, 15115, 15151, 15353, 15454, 15757, 16161, 16565]

cp's OEIS Frontend

A280636 Semiprime numbers whose digit string can be partitioned into three parts such that the product of the first two parts equals the third part.

Table of values

List of values