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.

A256138 Total number of ON states after n generations of cellular automaton of A151723 based on hexagons, if we only look at two opposite 120-degree wedges, including the central cell.

Table of values

n a(n)
1 1
2 5
3 9
4 21
5 25
6 37
7 57
8 85
9 89
10 101
11 121
12 157
13 193
14 221
15 273
16 333
17 337
18 349
19 369
20 405
21 441
22 477
23 545
24 645
25 713
26 741
27 793
28 885
29 993
30 1069
31 1193
32 1317
33 1321
34 1333
35 1353
36 1389
37 1425
38 1461
39 1529
40 1629
41 1697
42 1733
43 1801
44 1917
45 2065
46 2197
47 2361
48 2589
49 2721
50 2749
51 2801
52 2893
53 3001
54 3109
55 3281
56 3549
57 3785
58 3893
59 4017
60 4237
61 4513
62 4709
63 4985
64 5237

List of values

[1, 5, 9, 21, 25, 37, 57, 85, 89, 101, 121, 157, 193, 221, 273, 333, 337, 349, 369, 405, 441, 477, 545, 645, 713, 741, 793, 885, 993, 1069, 1193, 1317, 1321, 1333, 1353, 1389, 1425, 1461, 1529, 1629, 1697, 1733, 1801, 1917, 2065, 2197, 2361, 2589, 2721, 2749, 2801, 2893, 3001, 3109, 3281, 3549, 3785, 3893, 4017, 4237, 4513, 4709, 4985, 5237]