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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.

A377308 All winning positions of Gordon Hamilton's Jumping Frogs game, encoded as even numbers by their prime-factorization exponents.

Table of values

n a(n)
1 2
2 4
3 6
4 8
5 12
6 16
7 18
8 20
9 24
10 30
11 32
12 42
13 48
14 50
15 54
16 56
17 60
18 64
19 70
20 84
21 90
22 96
23 100
24 120
25 126
26 128
27 140
28 150
29 162
30 176
31 192
32 198
33 200
34 210
35 240
36 252
37 256
38 260
39 264
40 270
41 280
42 294
43 300
44 330
45 350
46 384
47 390
48 392
49 400
50 416
51 420
52 462
53 480
54 486
55 490
56 500

List of values

[2, 4, 6, 8, 12, 16, 18, 20, 24, 30, 32, 42, 48, 50, 54, 56, 60, 64, 70, 84, 90, 96, 100, 120, 126, 128, 140, 150, 162, 176, 192, 198, 200, 210, 240, 252, 256, 260, 264, 270, 280, 294, 300, 330, 350, 384, 390, 392, 400, 416, 420, 462, 480, 486, 490, 500]

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

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