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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A155762 Prime numbers p such that prepending any single decimal digit to p does not produce a prime.

Table of values

n a(n)
1 2
2 5
3 149
4 401
5 509
6 773
7 809
8 1021
9 1103
10 1289
11 1301
12 1451
13 1697
14 1709
15 1747
16 1877
17 1889
18 2087
19 2389
20 2521
21 2663
22 3373
23 3511
24 3631
25 3733
26 3779
27 3821
28 3919
29 3947
30 3989
31 4003
32 4073
33 4241
34 4289
35 4339
36 4637
37 4643
38 4801
39 4931
40 5039
41 5113
42 5387
43 5417
44 5477

List of values

[2, 5, 149, 401, 509, 773, 809, 1021, 1103, 1289, 1301, 1451, 1697, 1709, 1747, 1877, 1889, 2087, 2389, 2521, 2663, 3373, 3511, 3631, 3733, 3779, 3821, 3919, 3947, 3989, 4003, 4073, 4241, 4289, 4339, 4637, 4643, 4801, 4931, 5039, 5113, 5387, 5417, 5477]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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