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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.

A309118 Number of tiles added at iteration n when successively, layer by layer, building a symmetric patch of a rhombille tiling around a central star of six rhombs.

Table of values

n a(n)
1 6
2 6
3 12
4 18
5 24
6 24
7 36
8 30
9 48
10 36
11 60
12 42
13 72
14 48
15 84
16 54
17 96
18 60
19 108
20 66
21 120
22 72
23 132
24 78
25 144
26 84
27 156
28 90
29 168
30 96
31 180
32 102
33 192
34 108
35 204
36 114
37 216
38 120
39 228
40 126
41 240
42 132
43 252
44 138
45 264
46 144
47 276
48 150
49 288
50 156
51 300
52 162
53 312
54 168
55 324
56 174
57 336

List of values

[6, 6, 12, 18, 24, 24, 36, 30, 48, 36, 60, 42, 72, 48, 84, 54, 96, 60, 108, 66, 120, 72, 132, 78, 144, 84, 156, 90, 168, 96, 180, 102, 192, 108, 204, 114, 216, 120, 228, 126, 240, 132, 252, 138, 264, 144, 276, 150, 288, 156, 300, 162, 312, 168, 324, 174, 336]

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

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