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.

A272704 First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 513", based on the 5-celled von Neumann neighborhood.

Table of values

n a(n)
0 3
1 9
2 11
3 29
4 12
5 48
6 -1
7 117
8 12
9 80
10 -32
11 216
12 -16
13 112
14 -121
15 485
16 12
17 144
18 -96
19 408
20 -80
21 176
22 -312
23 936
24 -48
25 208
26 -280
27 720
28 -264
29 240
30 -745
31 1989
32 12
33 272
34 -224
35 792
36 -208
37 304
38 -696
39 1832
40 -176
41 336
42 -664
43 1360
44 -648
45 368
46 -1640
47 3912
48 -112
49 400

List of values

[3, 9, 11, 29, 12, 48, -1, 117, 12, 80, -32, 216, -16, 112, -121, 485, 12, 144, -96, 408, -80, 176, -312, 936, -48, 208, -280, 720, -264, 240, -745, 1989, 12, 272, -224, 792, -208, 304, -696, 1832, -176, 336, -664, 1360, -648, 368, -1640, 3912, -112, 400]