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.

A215060 Triangle read by rows, e.g.f. exp(x*(z+1/2))/((exp(3*x/2) + 2*cos(sqrt(3)*x/2))/3).

Table of values

n a(n)
0 1
1 0
2 1
3 0
4 0
5 1
6 -1
7 0
8 0
9 1
10 0
11 -4
12 0
13 0
14 1
15 0
16 0
17 -10
18 0
19 0
20 1
21 19
22 0
23 0
24 -20
25 0
26 0
27 1
28 0
29 133
30 0
31 0
32 -35
33 0
34 0
35 1
36 0
37 0
38 532
39 0
40 0
41 -56
42 0
43 0
44 1
45 -1513
46 0
47 0
48 1596
49 0
50 0
51 -84
52 0
53 0
54 1
55 0
56 -15130
57 0
58 0
59 3990
60 0
61 0
62 -120
63 0
64 0
65 1
66 0
67 0
68 -83215
69 0

List of values

[1, 0, 1, 0, 0, 1, -1, 0, 0, 1, 0, -4, 0, 0, 1, 0, 0, -10, 0, 0, 1, 19, 0, 0, -20, 0, 0, 1, 0, 133, 0, 0, -35, 0, 0, 1, 0, 0, 532, 0, 0, -56, 0, 0, 1, -1513, 0, 0, 1596, 0, 0, -84, 0, 0, 1, 0, -15130, 0, 0, 3990, 0, 0, -120, 0, 0, 1, 0, 0, -83215, 0]