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.

A129521 Numbers of the form p*q, p and q prime with q=2*p-1.

Table of values

n a(n)
1 6
2 15
3 91
4 703
5 1891
6 2701
7 12403
8 18721
9 38503
10 49141
11 79003
12 88831
13 104653
14 146611
15 188191
16 218791
17 226801
18 269011
19 286903
20 385003
21 497503
22 597871
23 665281
24 721801
25 736291
26 765703
27 873181
28 954271
29 1056331
30 1314631
31 1373653
32 1537381

List of values

[6, 15, 91, 703, 1891, 2701, 12403, 18721, 38503, 49141, 79003, 88831, 104653, 146611, 188191, 218791, 226801, 269011, 286903, 385003, 497503, 597871, 665281, 721801, 736291, 765703, 873181, 954271, 1056331, 1314631, 1373653, 1537381]