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.

A256940 a(n) is the total number of free ends of a certain configuration of line segments after n iterations (see Comments lines for definition).

Table of values

n a(n)
0 2
1 4
2 8
3 12
4 12
5 12
6 20
7 20
8 16
9 24
10 28
11 48
12 52
13 36
14 44
15 36
16 16
17 24
18 40
19 56
20 72
21 72
22 76
23 80
24 60
25 64
26 80
27 124
28 132
29 88
30 100
31 68
32 16
33 24
34 40
35 56
36 72
37 80
38 88
39 104
40 112
41 128
42 176
43 216
44 244
45 212
46 168
47 148
48 84
49 64
50 104
51 152
52 200
53 200
54 212
55 216
56 148
57 144
58 176
59 276
60 296
61 192
62 212
63 136
64 16

List of values

[2, 4, 8, 12, 12, 12, 20, 20, 16, 24, 28, 48, 52, 36, 44, 36, 16, 24, 40, 56, 72, 72, 76, 80, 60, 64, 80, 124, 132, 88, 100, 68, 16, 24, 40, 56, 72, 80, 88, 104, 112, 128, 176, 216, 244, 212, 168, 148, 84, 64, 104, 152, 200, 200, 212, 216, 148, 144, 176, 276, 296, 192, 212, 136, 16]

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

Content is available under The OEIS End-User License Agreement.