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.

A124305 Riordan array (1, 2*sqrt(3)*sin(arcsin(3*sqrt(3)*x/2)/3)/3).

Table of values

n a(n)
0 1
1 0
2 1
3 0
4 0
5 1
6 0
7 1
8 0
9 1
10 0
11 0
12 2
13 0
14 1
15 0
16 3
17 0
18 3
19 0
20 1
21 0
22 0
23 7
24 0
25 4
26 0
27 1
28 0
29 12
30 0
31 12
32 0
33 5
34 0
35 1
36 0
37 0
38 30
39 0
40 18
41 0
42 6
43 0
44 1
45 0
46 55
47 0
48 55
49 0
50 25
51 0
52 7
53 0
54 1
55 0
56 0
57 143
58 0
59 88
60 0
61 33
62 0
63 8
64 0
65 1

List of values

[1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 0, 0, 2, 0, 1, 0, 3, 0, 3, 0, 1, 0, 0, 7, 0, 4, 0, 1, 0, 12, 0, 12, 0, 5, 0, 1, 0, 0, 30, 0, 18, 0, 6, 0, 1, 0, 55, 0, 55, 0, 25, 0, 7, 0, 1, 0, 0, 143, 0, 88, 0, 33, 0, 8, 0, 1]