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.

A230138 List of those primes p with p + 2 and 2*p - 5 both prime.

Table of values

n a(n)
1 5
2 11
3 17
4 29
5 59
6 71
7 101
8 137
9 149
10 179
11 197
12 227
13 281
14 311
15 431
16 599
17 617
18 641
19 809
20 821
21 857
22 1151
23 1277
24 1319
25 1451
26 1481
27 1487
28 1607
29 1667
30 1697
31 1997
32 2027
33 2081
34 2111
35 2129
36 2339
37 2657
38 2711
39 2789
40 3167
41 3329
42 3371
43 3461
44 3557
45 3767
46 3917
47 3929
48 4049
49 4217
50 4259

List of values

[5, 11, 17, 29, 59, 71, 101, 137, 149, 179, 197, 227, 281, 311, 431, 599, 617, 641, 809, 821, 857, 1151, 1277, 1319, 1451, 1481, 1487, 1607, 1667, 1697, 1997, 2027, 2081, 2111, 2129, 2339, 2657, 2711, 2789, 3167, 3329, 3371, 3461, 3557, 3767, 3917, 3929, 4049, 4217, 4259]

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

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