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.

A195033 Multiples of 21 and of 20 interleaved: a(2n-1) = 21n, a(2n) = 20n.

Table of values

n a(n)
1 21
2 20
3 42
4 40
5 63
6 60
7 84
8 80
9 105
10 100
11 126
12 120
13 147
14 140
15 168
16 160
17 189
18 180
19 210
20 200
21 231
22 220
23 252
24 240
25 273
26 260
27 294
28 280
29 315
30 300
31 336
32 320
33 357
34 340
35 378
36 360
37 399
38 380
39 420
40 400
41 441
42 420
43 462
44 440
45 483
46 460
47 504
48 480
49 525
50 500
51 546
52 520
53 567
54 540

List of values

[21, 20, 42, 40, 63, 60, 84, 80, 105, 100, 126, 120, 147, 140, 168, 160, 189, 180, 210, 200, 231, 220, 252, 240, 273, 260, 294, 280, 315, 300, 336, 320, 357, 340, 378, 360, 399, 380, 420, 400, 441, 420, 462, 440, 483, 460, 504, 480, 525, 500, 546, 520, 567, 540]