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.

A261958 Start with a single square for n=0; for the odd n-th generation add a square at each expandable vertex of the squares of the (n-1)-th generation (this is the "vertex to vertex" version); for the even n-th generation use the "side to vertex" version; a(n) is the number of squares added in the n-th generation.

Table of values

n a(n)
0 1
1 4
2 12
3 16
4 24
5 32
6 28
7 36
8 32
9 44
10 44
11 56
12 56
13 72
14 60
15 76
16 64
17 84
18 76
19 96
20 88
21 112
22 92
23 116
24 96
25 124
26 108
27 136
28 120
29 152
30 124
31 156
32 128
33 164
34 140
35 176
36 152
37 192
38 156
39 196
40 160
41 204
42 172
43 216
44 184
45 232
46 188
47 236
48 192
49 244
50 204
51 256
52 216

List of values

[1, 4, 12, 16, 24, 32, 28, 36, 32, 44, 44, 56, 56, 72, 60, 76, 64, 84, 76, 96, 88, 112, 92, 116, 96, 124, 108, 136, 120, 152, 124, 156, 128, 164, 140, 176, 152, 192, 156, 196, 160, 204, 172, 216, 184, 232, 188, 236, 192, 244, 204, 256, 216]