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.

A229032 Triangle T(n,k), 0 <= k <= n, read by rows, defined by T(n,k) = 4^k * C(n+1,2*k+1).

Table of values

n a(n)
0 1
1 2
2 0
3 3
4 4
5 0
6 4
7 16
8 0
9 0
10 5
11 40
12 16
13 0
14 0
15 6
16 80
17 96
18 0
19 0
20 0
21 7
22 140
23 336
24 64
25 0
26 0
27 0
28 8
29 224
30 896
31 512
32 0
33 0
34 0
35 0
36 9
37 336
38 2016
39 2304
40 256
41 0
42 0
43 0
44 0
45 10
46 480
47 4032
48 7680
49 2560
50 0
51 0
52 0
53 0
54 0
55 11
56 660
57 7392
58 21120
59 14080
60 1024
61 0
62 0
63 0
64 0
65 0

List of values

[1, 2, 0, 3, 4, 0, 4, 16, 0, 0, 5, 40, 16, 0, 0, 6, 80, 96, 0, 0, 0, 7, 140, 336, 64, 0, 0, 0, 8, 224, 896, 512, 0, 0, 0, 0, 9, 336, 2016, 2304, 256, 0, 0, 0, 0, 10, 480, 4032, 7680, 2560, 0, 0, 0, 0, 0, 11, 660, 7392, 21120, 14080, 1024, 0, 0, 0, 0, 0]