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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.

A279366 Primes whose proper substrings of consecutive digits are all composite.

Table of values

n a(n)
1 89
2 449
3 499
4 4649
5 4969
6 6469
7 6869
8 6949
9 8669
10 8699
11 8849
12 9649
13 9949
14 44699
15 46649
16 48649
17 48869
18 49669
19 64849
20 84869
21 86969
22 88469
23 94849
24 94949
25 98869
26 99469
27 444469
28 444869
29 446969
30 466649
31 468869
32 469849
33 469969
34 494699
35 496669
36 496849
37 498469
38 644669

List of values

[89, 449, 499, 4649, 4969, 6469, 6869, 6949, 8669, 8699, 8849, 9649, 9949, 44699, 46649, 48649, 48869, 49669, 64849, 84869, 86969, 88469, 94849, 94949, 98869, 99469, 444469, 444869, 446969, 466649, 468869, 469849, 469969, 494699, 496669, 496849, 498469, 644669]

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

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