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.

A271059 First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 260", based on the 5-celled von Neumann neighborhood.

Table of values

n a(n)
0 3
1 1
2 7
3 -8
4 12
5 4
6 28
7 -31
8 7
9 12
10 44
11 -68
12 36
13 12
14 84
15 -104
16 16
17 52
18 92
19 -144
20 16
21 68
22 60
23 -44
24 20
25 56
26 136
27 -228
28 92
29 104
30 104
31 -124
32 -12
33 84
34 156
35 -228
36 28
37 20
38 100
39 -4
40 -36
41 84
42 76
43 -136
44 40
45 292
46 28
47 -120
48 -64
49 168
50 328
51 -384
52 48
53 76
54 380
55 -364
56 212

List of values

[3, 1, 7, -8, 12, 4, 28, -31, 7, 12, 44, -68, 36, 12, 84, -104, 16, 52, 92, -144, 16, 68, 60, -44, 20, 56, 136, -228, 92, 104, 104, -124, -12, 84, 156, -228, 28, 20, 100, -4, -36, 84, 76, -136, 40, 292, 28, -120, -64, 168, 328, -384, 48, 76, 380, -364, 212]