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.

A271060 Number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 261", based on the 5-celled von Neumann neighborhood.

Table of values

n a(n)
0 1
1 8
2 1
3 48
4 1
5 120
6 1
7 224
8 1
9 360
10 1
11 528
12 1
13 728
14 1
15 960
16 1
17 1224
18 1
19 1520
20 1
21 1848
22 1
23 2208
24 1
25 2600
26 1
27 3024
28 1
29 3480
30 1
31 3968
32 1
33 4488
34 1
35 5040
36 1
37 5624
38 1
39 6240
40 1
41 6888
42 1
43 7568
44 1
45 8280
46 1
47 9024
48 1
49 9800
50 1
51 10608
52 1
53 11448
54 1
55 12320
56 1
57 13224
58 1

List of values

[1, 8, 1, 48, 1, 120, 1, 224, 1, 360, 1, 528, 1, 728, 1, 960, 1, 1224, 1, 1520, 1, 1848, 1, 2208, 1, 2600, 1, 3024, 1, 3480, 1, 3968, 1, 4488, 1, 5040, 1, 5624, 1, 6240, 1, 6888, 1, 7568, 1, 8280, 1, 9024, 1, 9800, 1, 10608, 1, 11448, 1, 12320, 1, 13224, 1]