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.

A230039 Primes p such that 2*p+1 is not prime and 2*p+3 is prime.

Table of values

n a(n)
1 7
2 13
3 17
4 19
5 43
6 47
7 67
8 73
9 97
10 127
11 137
12 139
13 157
14 167
15 193
16 197
17 199
18 223
19 227
20 229
21 269
22 277
23 283
24 307
25 337
26 349
27 353
28 379
29 383
30 397
31 409
32 439
33 463
34 467
35 487
36 503
37 523
38 547
39 557
40 563
41 599
42 607
43 613
44 617
45 643
46 647
47 739
48 773
49 797
50 827
51 853
52 859
53 887
54 929

List of values

[7, 13, 17, 19, 43, 47, 67, 73, 97, 127, 137, 139, 157, 167, 193, 197, 199, 223, 227, 229, 269, 277, 283, 307, 337, 349, 353, 379, 383, 397, 409, 439, 463, 467, 487, 503, 523, 547, 557, 563, 599, 607, 613, 617, 643, 647, 739, 773, 797, 827, 853, 859, 887, 929]

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

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