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.

A066653 Squarefree numbers k such that the pair 2*k +- 1 is a twin prime pair.

Table of values

n a(n)
1 2
2 3
3 6
4 15
5 21
6 30
7 51
8 69
9 114
10 141
11 174
12 210
13 231
14 285
15 309
16 321
17 330
18 411
19 429
20 510
21 546
22 615
23 645
24 651
25 714
26 741
27 834
28 849
29 861
30 894
31 939
32 966
33 1041
34 1065
35 1119
36 1155
37 1191
38 1329
39 1365
40 1401
41 1626
42 1686
43 1695
44 1731
45 1770

List of values

[2, 3, 6, 15, 21, 30, 51, 69, 114, 141, 174, 210, 231, 285, 309, 321, 330, 411, 429, 510, 546, 615, 645, 651, 714, 741, 834, 849, 861, 894, 939, 966, 1041, 1065, 1119, 1155, 1191, 1329, 1365, 1401, 1626, 1686, 1695, 1731, 1770]