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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.

A267874 Total number of ON (black) cells after n iterations of the "Rule 235" elementary cellular automaton starting with a single ON (black) cell.

Table of values

n a(n)
0 1
1 2
2 6
3 13
4 22
5 33
6 46
7 61
8 78
9 97
10 118
11 141
12 166
13 193
14 222
15 253
16 286
17 321
18 358
19 397
20 438
21 481
22 526
23 573
24 622
25 673
26 726
27 781
28 838
29 897
30 958
31 1021
32 1086
33 1153
34 1222
35 1293
36 1366
37 1441
38 1518
39 1597
40 1678
41 1761
42 1846
43 1933
44 2022
45 2113
46 2206
47 2301
48 2398
49 2497

List of values

[1, 2, 6, 13, 22, 33, 46, 61, 78, 97, 118, 141, 166, 193, 222, 253, 286, 321, 358, 397, 438, 481, 526, 573, 622, 673, 726, 781, 838, 897, 958, 1021, 1086, 1153, 1222, 1293, 1366, 1441, 1518, 1597, 1678, 1761, 1846, 1933, 2022, 2113, 2206, 2301, 2398, 2497]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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