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.

A273417 Number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 705", based on the 5-celled von Neumann neighborhood.

Table of values

n a(n)
0 1
1 4
2 21
3 41
4 72
5 113
6 160
7 217
8 280
9 353
10 432
11 521
12 616
13 721
14 832
15 953
16 1080
17 1217
18 1360
19 1513
20 1672
21 1841
22 2016
23 2201
24 2392
25 2593
26 2800
27 3017
28 3240
29 3473
30 3712
31 3961
32 4216
33 4481
34 4752
35 5033
36 5320
37 5617
38 5920
39 6233
40 6552
41 6881
42 7216
43 7561
44 7912
45 8273
46 8640

List of values

[1, 4, 21, 41, 72, 113, 160, 217, 280, 353, 432, 521, 616, 721, 832, 953, 1080, 1217, 1360, 1513, 1672, 1841, 2016, 2201, 2392, 2593, 2800, 3017, 3240, 3473, 3712, 3961, 4216, 4481, 4752, 5033, 5320, 5617, 5920, 6233, 6552, 6881, 7216, 7561, 7912, 8273, 8640]