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.

A273408 Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 675", based on the 5-celled von Neumann neighborhood.

Table of values

n a(n)
0 1
1 6
2 27
3 72
4 149
5 266
6 431
7 652
8 937
9 1294
10 1731
11 2256
12 2877
13 3602
14 4439
15 5396
16 6481
17 7702
18 9067
19 10584
20 12261
21 14106
22 16127
23 18332
24 20729
25 23326
26 26131
27 29152
28 32397
29 35874
30 39591
31 43556
32 47777
33 52262
34 57019
35 62056
36 67381
37 73002
38 78927
39 85164
40 91721
41 98606

List of values

[1, 6, 27, 72, 149, 266, 431, 652, 937, 1294, 1731, 2256, 2877, 3602, 4439, 5396, 6481, 7702, 9067, 10584, 12261, 14106, 16127, 18332, 20729, 23326, 26131, 29152, 32397, 35874, 39591, 43556, 47777, 52262, 57019, 62056, 67381, 73002, 78927, 85164, 91721, 98606]