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.

A231348 Number of triangles after n-th stage in a cellular automaton based in isosceles triangles of two sizes (see Comments lines for precise definition).

Table of values

n a(n)
0 0
1 1
2 3
3 7
4 11
5 15
6 23
7 33
8 41
9 45
10 53
11 65
12 81
13 91
14 111
15 133
16 149
17 153
18 161
19 173
20 189
21 201
22 225
23 253
24 285
25 295
26 315
27 343
28 383
29 405
30 449
31 495
32 527
33 531
34 539
35 551
36 567
37 579
38 603
39 631
40 663
41 675
42 699
43 731
44 779
45 807
46 863
47 923
48 987
49 997
50 1017
51 1045
52 1085
53 1113
54 1169
55 1233
56 1313
57 1335
58 1379
59 1439
60 1527
61 1573
62 1665
63 1759
64 1823

List of values

[0, 1, 3, 7, 11, 15, 23, 33, 41, 45, 53, 65, 81, 91, 111, 133, 149, 153, 161, 173, 189, 201, 225, 253, 285, 295, 315, 343, 383, 405, 449, 495, 527, 531, 539, 551, 567, 579, 603, 631, 663, 675, 699, 731, 779, 807, 863, 923, 987, 997, 1017, 1045, 1085, 1113, 1169, 1233, 1313, 1335, 1379, 1439, 1527, 1573, 1665, 1759, 1823]