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.

A288021 Prime p1 of consecutive primes p1, p2, where p2 - p1 = 4, and p1, p2 are in different decades.

Table of values

n a(n)
1 7
2 19
3 37
4 67
5 79
6 97
7 109
8 127
9 229
10 277
11 307
12 349
13 379
14 397
15 439
16 457
17 487
18 499
19 739
20 757
21 769
22 859
23 877
24 907
25 937
26 967
27 1009
28 1087
29 1279
30 1297
31 1429
32 1447
33 1489
34 1549
35 1567
36 1579
37 1597
38 1609
39 1867
40 1999
41 2137
42 2239
43 2269
44 2347
45 2377
46 2389
47 2437
48 2539
49 2617
50 2659
51 2689
52 2707
53 2749
54 2797
55 2857

List of values

[7, 19, 37, 67, 79, 97, 109, 127, 229, 277, 307, 349, 379, 397, 439, 457, 487, 499, 739, 757, 769, 859, 877, 907, 937, 967, 1009, 1087, 1279, 1297, 1429, 1447, 1489, 1549, 1567, 1579, 1597, 1609, 1867, 1999, 2137, 2239, 2269, 2347, 2377, 2389, 2437, 2539, 2617, 2659, 2689, 2707, 2749, 2797, 2857]

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

Content is available under The OEIS End-User License Agreement.