A215419 - cp's OEIS frontend

A215419 Primes that remain prime when a single digit 3 is inserted between any two consecutive digits or as the leading or trailing digit.

n	a(n)
1	7
2	11
3	17
4	31
5	37
6	73
7	271
8	331
9	359
10	373
11	673
12	733
13	1033
14	2297
15	3119
16	3461
17	3923
18	5323
19	5381
20	5419
21	6073
22	6353
23	9103
24	9887
25	18289
26	23549
27	25349
28	31333
29	32933
30	33349
31	35747
32	37339
33	37361
34	37489
35	47533
36	84299
37	92333
38	93241
39	95093
40	98491
41	133733
42	136333
43	139333

[7, 11, 17, 31, 37, 73, 271, 331, 359, 373, 673, 733, 1033, 2297, 3119, 3461, 3923, 5323, 5381, 5419, 6073, 6353, 9103, 9887, 18289, 23549, 25349, 31333, 32933, 33349, 35747, 37339, 37361, 37489, 47533, 84299, 92333, 93241, 95093, 98491, 133733, 136333, 139333]

cp's OEIS Frontend

A215419 Primes that remain prime when a single digit 3 is inserted between any two consecutive digits or as the leading or trailing digit.

Table of values

List of values