A125268 - cp's OEIS frontend

A125268 Numbers that end with decimal digit 1, 3, 7, or 9 and that produce only composite numbers when any of the digits 0,1,...,9 is inserted anywhere in them (including at the beginning or end).

n	a(n)
1	25011
2	52647
3	72753
4	122313
5	168699
6	283251
7	324021
8	598041
9	783441
10	804131
11	837207
12	924807
13	1247241
14	1905759
15	2514819
16	3461101
17	3514077
18	3617389
19	3905817
20	4112913
21	4142139
22	4203151
23	4229871
24	4283679
25	4531907
26	4628827
27	4828443
28	5380413
29	5478091
30	5632671
31	5714889
32	5818569
33	5989269
34	5990961

[25011, 52647, 72753, 122313, 168699, 283251, 324021, 598041, 783441, 804131, 837207, 924807, 1247241, 1905759, 2514819, 3461101, 3514077, 3617389, 3905817, 4112913, 4142139, 4203151, 4229871, 4283679, 4531907, 4628827, 4828443, 5380413, 5478091, 5632671, 5714889, 5818569, 5989269, 5990961]

cp's OEIS Frontend

A125268 Numbers that end with decimal digit 1, 3, 7, or 9 and that produce only composite numbers when any of the digits 0,1,...,9 is inserted anywhere in them (including at the beginning or end).

Table of values

List of values