cp's OEIS Frontend

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.

A216305 Values of k such that 10*k+1 and 10*k+9 alone are prime between 10*k and 10*k+9.

Table of values

n a(n)
1 40
2 49
3 70
4 76
5 91
6 157
7 253
8 274
9 301
10 304
11 322
12 349
13 370
14 388
15 475
16 505
17 517
18 622
19 652
20 715
21 769
22 817
23 868
24 931
25 994
26 1015
27 1039
28 1063
29 1078
30 1132
31 1168
32 1228
33 1240
34 1279
35 1315
36 1324
37 1378
38 1441
39 1477
40 1555
41 1567
42 1687
43 1723
44 1735
45 1819
46 1837
47 1867
48 1900

List of values

[40, 49, 70, 76, 91, 157, 253, 274, 301, 304, 322, 349, 370, 388, 475, 505, 517, 622, 652, 715, 769, 817, 868, 931, 994, 1015, 1039, 1063, 1078, 1132, 1168, 1228, 1240, 1279, 1315, 1324, 1378, 1441, 1477, 1555, 1567, 1687, 1723, 1735, 1819, 1837, 1867, 1900]