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.

A233761 Number of toothpicks or D-toothpicks added at n-th stage in the structure of the D-toothpick "wide" triangle of A233760.

Table of values

n a(n)
0 0
1 1
2 2
3 2
4 4
5 2
6 4
7 6
8 8
9 2
10 4
11 6
12 12
13 14
14 12
15 14
16 16
17 2
18 4
19 6
20 12
21 14
22 20
23 22
24 26
25 22
26 12
27 18
28 32
29 38
30 28
31 30
32 32
33 2
34 4
35 6
36 12
37 14
38 20
39 22
40 26
41 22
42 20
43 30
44 44
45 62
46 52
47 46
48 54
49 38
50 12
51 18
52 36
53 46
54 56
55 62
56 74
57 74
58 30
59 42
60 72
61 86
62 60
63 62
64 64
65 2
66 4
67 6
68 12

List of values

[0, 1, 2, 2, 4, 2, 4, 6, 8, 2, 4, 6, 12, 14, 12, 14, 16, 2, 4, 6, 12, 14, 20, 22, 26, 22, 12, 18, 32, 38, 28, 30, 32, 2, 4, 6, 12, 14, 20, 22, 26, 22, 20, 30, 44, 62, 52, 46, 54, 38, 12, 18, 36, 46, 56, 62, 74, 74, 30, 42, 72, 86, 60, 62, 64, 2, 4, 6, 12]

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

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