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.

A158339 Semiprimes that are the sum of four successive semiprimes.

Table of values

n a(n)
1 39
2 94
3 106
4 118
5 146
6 158
7 185
8 201
9 221
10 254
11 302
12 365
13 427
14 473
15 485
16 519
17 537
18 589
19 633
20 655
21 707
22 723
23 749
24 767
25 842
26 851
27 869
28 901
29 1003
30 1145
31 1205
32 1211
33 1219
34 1247
35 1263
36 1337
37 1349
38 1603
39 1646
40 1681
41 1703
42 1731
43 1797
44 1891
45 1903
46 1937
47 2005
48 2019

List of values

[39, 94, 106, 118, 146, 158, 185, 201, 221, 254, 302, 365, 427, 473, 485, 519, 537, 589, 633, 655, 707, 723, 749, 767, 842, 851, 869, 901, 1003, 1145, 1205, 1211, 1219, 1247, 1263, 1337, 1349, 1603, 1646, 1681, 1703, 1731, 1797, 1891, 1903, 1937, 2005, 2019]