A158594 - cp's OEIS frontend

A158594 Numbers which yield a prime whenever a 3 is prefixed, appended or inserted.

n	a(n)
1	1
2	7
3	11
4	17
5	31
6	37
7	73
8	121
9	271
10	331
11	343
12	359
13	361
14	373
15	533
16	637
17	673
18	733
19	793
20	889
21	943
22	1033
23	1183
24	2297
25	3013
26	3119
27	3223
28	3353
29	3403
30	3461
31	3757
32	3827
33	3893
34	3923
35	4313
36	4543
37	4963
38	5323
39	5381
40	5419
41	6073
42	6353
43	8653
44	9103
45	9887
46	10423
47	14257

[1, 7, 11, 17, 31, 37, 73, 121, 271, 331, 343, 359, 361, 373, 533, 637, 673, 733, 793, 889, 943, 1033, 1183, 2297, 3013, 3119, 3223, 3353, 3403, 3461, 3757, 3827, 3893, 3923, 4313, 4543, 4963, 5323, 5381, 5419, 6073, 6353, 8653, 9103, 9887, 10423, 14257]

cp's OEIS Frontend

A158594 Numbers which yield a prime whenever a 3 is prefixed, appended or inserted.

Table of values

List of values