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.

A273409 Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 678", based on the 5-celled von Neumann neighborhood.

Table of values

n a(n)
0 1
1 6
2 11
3 28
4 37
5 66
6 87
7 152
8 177
9 254
10 291
11 404
12 453
13 602
14 687
15 944
16 1033
17 1302
18 1403
19 1708
20 1821
21 2162
22 2311
23 2760
24 2921
25 3406
26 3603
27 4196
28 4429
29 5130
30 5471
31 6496
32 6841
33 7878
34 8235
35 9308
36 9677
37 10786
38 11191
39 12408
40 12825
41 14078
42 14531
43 15892
44 16381
45 17850

List of values

[1, 6, 11, 28, 37, 66, 87, 152, 177, 254, 291, 404, 453, 602, 687, 944, 1033, 1302, 1403, 1708, 1821, 2162, 2311, 2760, 2921, 3406, 3603, 4196, 4429, 5130, 5471, 6496, 6841, 7878, 8235, 9308, 9677, 10786, 11191, 12408, 12825, 14078, 14531, 15892, 16381, 17850]