A178423 - cp's OEIS frontend

A178423 Semiprimes for which dropping any digit gives a prime number.

n	a(n)
1	22
2	25
3	33
4	35
5	55
6	57
7	77
8	111
9	119
10	371
11	411
12	413
13	417
14	437
15	471
16	473
17	611
18	671
19	713
20	731
21	1037
22	1073
23	1079
24	1379
25	1397
26	1673
27	1739
28	1937
29	1991
30	2571
31	2577
32	2811
33	3113
34	3131
35	3173
36	3317
37	4331
38	4439
39	4499
40	4631
41	6017
42	6431
43	6773
44	7619
45	9977
46	12777

[22, 25, 33, 35, 55, 57, 77, 111, 119, 371, 411, 413, 417, 437, 471, 473, 611, 671, 713, 731, 1037, 1073, 1079, 1379, 1397, 1673, 1739, 1937, 1991, 2571, 2577, 2811, 3113, 3131, 3173, 3317, 4331, 4439, 4499, 4631, 6017, 6431, 6773, 7619, 9977, 12777]

cp's OEIS Frontend

A178423 Semiprimes for which dropping any digit gives a prime number.

Table of values

List of values