A106550 - cp's OEIS frontend

A106550 a(n) = n-th semiprime + (concatenation of its two prime factors, smallest factor first).

n	a(n)
1	26
2	29
3	42
4	35
5	41
6	50
7	58
8	233
9	80
10	239
11	344
12	251
13	92
14	257
15	352
16	269
17	126
18	368
19	566
20	376
21	287
22	293
23	578
24	392
25	311
26	788
27	323
28	602
29	329
30	416
31	804
32	424
33	341
34	614
35	359
36	448
37	638
38	377
39	836
40	1232
41	383
42	464
43	472
44	852
45	401
46	488
47	413
48	1256
49	674
50	419
51	686
52	437
53	512
54	884

[26, 29, 42, 35, 41, 50, 58, 233, 80, 239, 344, 251, 92, 257, 352, 269, 126, 368, 566, 376, 287, 293, 578, 392, 311, 788, 323, 602, 329, 416, 804, 424, 341, 614, 359, 448, 638, 377, 836, 1232, 383, 464, 472, 852, 401, 488, 413, 1256, 674, 419, 686, 437, 512, 884]

cp's OEIS Frontend

A106550 a(n) = n-th semiprime + (concatenation of its two prime factors, smallest factor first).

Table of values

List of values