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.

A071143 Numbers n such that (i) the sum of the distinct primes dividing n is divisible by the largest prime dividing n and (ii) n has exactly 4 distinct prime factors and (iii) n is squarefree.

Table of values

n a(n)
1 3135
2 6279
3 8855
4 10695
5 11571
6 16095
7 17255
8 17391
9 20615
10 20735
11 26691
12 28083
13 31031
14 36519
15 41151
16 41615
17 45695
18 46655
19 47859
20 48495
21 50439
22 54131
23 56823
24 57239
25 59295
26 61295
27 66215
28 72611
29 76055
30 76479
31 80135
32 84135
33 88595
34 89999
35 90951
36 93651
37 94611

List of values

[3135, 6279, 8855, 10695, 11571, 16095, 17255, 17391, 20615, 20735, 26691, 28083, 31031, 36519, 41151, 41615, 45695, 46655, 47859, 48495, 50439, 54131, 56823, 57239, 59295, 61295, 66215, 72611, 76055, 76479, 80135, 84135, 88595, 89999, 90951, 93651, 94611]