A106554 - cp's OEIS frontend

A106554 Concatenation of the two prime divisors of a semiprime, smallest divisor first.

n	a(n)
1	22
2	23
3	33
4	25
5	27
6	35
7	37
8	211
9	55
10	213
11	311
12	217
13	57
14	219
15	313
16	223
17	77
18	317
19	511
20	319
21	229
22	231
23	513
24	323
25	237
26	711
27	241
28	517
29	243
30	329
31	713
32	331
33	247
34	519
35	253
36	337
37	523
38	259
39	717
40	1111
41	261
42	341
43	343
44	719
45	267
46	347
47	271
48	1113

[22, 23, 33, 25, 27, 35, 37, 211, 55, 213, 311, 217, 57, 219, 313, 223, 77, 317, 511, 319, 229, 231, 513, 323, 237, 711, 241, 517, 243, 329, 713, 331, 247, 519, 253, 337, 523, 259, 717, 1111, 261, 341, 343, 719, 267, 347, 271, 1113]

cp's OEIS Frontend

A106554 Concatenation of the two prime divisors of a semiprime, smallest divisor first.

Table of values

List of values