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.

A136240 Numbers n among A006093 such that n^2 + n + 1 is prime.

Table of values

n a(n)
1 1
2 2
3 6
4 12
5 66
6 78
7 138
8 150
9 162
10 192
11 336
12 348
13 378
14 456
15 540
16 612
17 642
18 726
19 768
20 918
21 990
22 1020
23 1092
24 1116
25 1200
26 1230
27 1380
28 1422
29 1548
30 1566
31 1596
32 1620
33 1692
34 1746
35 1788
36 1800
37 1932
38 1986
39 2010
40 2016
41 2112
42 2136
43 2142
44 2238
45 2280
46 2556
47 2646

List of values

[1, 2, 6, 12, 66, 78, 138, 150, 162, 192, 336, 348, 378, 456, 540, 612, 642, 726, 768, 918, 990, 1020, 1092, 1116, 1200, 1230, 1380, 1422, 1548, 1566, 1596, 1620, 1692, 1746, 1788, 1800, 1932, 1986, 2010, 2016, 2112, 2136, 2142, 2238, 2280, 2556, 2646]

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

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