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.

A273744 Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 901", based on the 5-celled von Neumann neighborhood.

Table of values

n a(n)
0 1
1 9
2 34
3 83
4 164
5 285
6 454
7 679
8 968
9 1329
10 1770
11 2299
12 2924
13 3653
14 4494
15 5455
16 6544
17 7769
18 9138
19 10659
20 12340
21 14189
22 16214
23 18423
24 20824
25 23425
26 26234
27 29259
28 32508
29 35989
30 39710
31 43679
32 47904
33 52393
34 57154
35 62195
36 67524
37 73149
38 79078
39 85319
40 91880
41 98769

List of values

[1, 9, 34, 83, 164, 285, 454, 679, 968, 1329, 1770, 2299, 2924, 3653, 4494, 5455, 6544, 7769, 9138, 10659, 12340, 14189, 16214, 18423, 20824, 23425, 26234, 29259, 32508, 35989, 39710, 43679, 47904, 52393, 57154, 62195, 67524, 73149, 79078, 85319, 91880, 98769]