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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.

A216302 Numbers k such that 10k+9 is composite but 10k+1, 10k+3, 10k+7 are all prime.

Table of values

n a(n)
1 4
2 31
3 46
4 64
5 88
6 109
7 130
8 367
9 400
10 493
11 523
12 550
13 823
14 829
15 886
16 946
17 1033
18 1117
19 1369
20 1390
21 1408
22 1432
23 1825
24 1999
25 2161
26 2329
27 2356
28 2374
29 2503
30 2626
31 2668
32 2671
33 2794
34 2902
35 3049
36 3139
37 3151
38 3154
39 3232
40 3253
41 3421
42 3553
43 3559
44 3601
45 3799
46 3904

List of values

[4, 31, 46, 64, 88, 109, 130, 367, 400, 493, 523, 550, 823, 829, 886, 946, 1033, 1117, 1369, 1390, 1408, 1432, 1825, 1999, 2161, 2329, 2356, 2374, 2503, 2626, 2668, 2671, 2794, 2902, 3049, 3139, 3151, 3154, 3232, 3253, 3421, 3553, 3559, 3601, 3799, 3904]

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

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