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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.

A068090 Numbers n which divide the right concatenation of the first n even numbers.

Table of values

n a(n)
1 1
2 2
3 3
4 4
5 5
6 6
7 8
8 9
9 10
10 12
11 14
12 15
13 18
14 20
15 24
16 25
17 30
18 35
19 36
20 39
21 40
22 45
23 50
24 60
25 72
26 75
27 80
28 90
29 100
30 120
31 125
32 144
33 150
34 180
35 200
36 204
37 225
38 240
39 250
40 300
41 360
42 375
43 400
44 450
45 500
46 507
47 540
48 585
49 600
50 624
51 625
52 675
53 702
54 720
55 750
56 780
57 800
58 804
59 864
60 900

List of values

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 14, 15, 18, 20, 24, 25, 30, 35, 36, 39, 40, 45, 50, 60, 72, 75, 80, 90, 100, 120, 125, 144, 150, 180, 200, 204, 225, 240, 250, 300, 360, 375, 400, 450, 500, 507, 540, 585, 600, 624, 625, 675, 702, 720, 750, 780, 800, 804, 864, 900]

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

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