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.

A242209 Semiprimes sp = p^2 + q^2 + r^2 where p, q and r are consecutive primes.

Table of values

n a(n)
1 38
2 339
3 579
4 1731
5 5739
6 8499
7 32259
8 133851
9 145779
10 163851
11 207579
12 222531
13 235779
14 260187
15 308019
16 323619
17 366819
18 469731
19 550491
20 644979
21 684699
22 743091
23 926427
24 1003539
25 1242939
26 1743531
27 1808259
28 1852107
29 1909059
30 2075091
31 2585571
32 4226979
33 5358291

List of values

[38, 339, 579, 1731, 5739, 8499, 32259, 133851, 145779, 163851, 207579, 222531, 235779, 260187, 308019, 323619, 366819, 469731, 550491, 644979, 684699, 743091, 926427, 1003539, 1242939, 1743531, 1808259, 1852107, 1909059, 2075091, 2585571, 4226979, 5358291]

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

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