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.

A071140 Numbers n such that sum of distinct primes dividing n is divisible by largest prime dividing n; n is neither a prime, nor a true power of prime.

Table of values

n a(n)
1 30
2 60
3 70
4 90
5 120
6 140
7 150
8 180
9 240
10 270
11 280
12 286
13 300
14 350
15 360
16 450
17 480
18 490
19 540
20 560
21 572
22 600
23 646
24 700
25 720
26 750
27 810
28 900
29 960
30 980
31 1080
32 1120
33 1144
34 1200
35 1292
36 1350
37 1400
38 1440
39 1500
40 1620
41 1750
42 1798
43 1800
44 1920
45 1960
46 2160
47 2240
48 2250

List of values

[30, 60, 70, 90, 120, 140, 150, 180, 240, 270, 280, 286, 300, 350, 360, 450, 480, 490, 540, 560, 572, 600, 646, 700, 720, 750, 810, 900, 960, 980, 1080, 1120, 1144, 1200, 1292, 1350, 1400, 1440, 1500, 1620, 1750, 1798, 1800, 1920, 1960, 2160, 2240, 2250]