A253911 - cp's OEIS frontend

A253911 Concatenation of n-th nonprime and n-th prime.

n	a(n)
1	12
2	43
3	65
4	87
5	911
6	1013
7	1217
8	1419
9	1523
10	1629
11	1831
12	2037
13	2141
14	2243
15	2447
16	2553
17	2659
18	2761
19	2867
20	3071
21	3273
22	3379
23	3483
24	3589
25	3697
26	38101
27	39103
28	40107
29	42109
30	44113
31	45127
32	46131
33	48137
34	49139
35	50149
36	51151
37	52157
38	54163
39	55167
40	56173
41	57179
42	58181
43	60191
44	62193
45	63197
46	64199
47	65211
48	66223
49	68227
50	69229

[12, 43, 65, 87, 911, 1013, 1217, 1419, 1523, 1629, 1831, 2037, 2141, 2243, 2447, 2553, 2659, 2761, 2867, 3071, 3273, 3379, 3483, 3589, 3697, 38101, 39103, 40107, 42109, 44113, 45127, 46131, 48137, 49139, 50149, 51151, 52157, 54163, 55167, 56173, 57179, 58181, 60191, 62193, 63197, 64199, 65211, 66223, 68227, 69229]

cp's OEIS Frontend

A253911 Concatenation of n-th nonprime and n-th prime.

Table of values

List of values