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.

A364241 a(n) is the initial transient (converted to base 10), before the periodic part, on the n-th diagonal from the left of rule-30 1-D cellular automaton, when started from a single ON cell, or -1 if there is no transient part.

Table of values

n a(n)
1 -1
2 -1
3 1
4 -1
5 -1
6 -1
7 -1
8 -1
9 -1
10 -1
11 1
12 1
13 -1
14 4
15 9
16 0
17 228
18 63
19 1241
20 69
21 7609
22 2944
23 11356
24 255
25 28487
26 30890
27 42037
28 24160
29 104333
30 19167
31 132196
32 25361
33 1042145
34 473564
35 4512243
36 153187
37 258856349
38 2950249
39 353554884
40 104435283
41 26762321451
42 2005002052

List of values

[-1, -1, 1, -1, -1, -1, -1, -1, -1, -1, 1, 1, -1, 4, 9, 0, 228, 63, 1241, 69, 7609, 2944, 11356, 255, 28487, 30890, 42037, 24160, 104333, 19167, 132196, 25361, 1042145, 473564, 4512243, 153187, 258856349, 2950249, 353554884, 104435283, 26762321451, 2005002052]