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.

A220399 A convolution triangle of numbers obtained from A057682.

Table of values

n a(n)
0 1
1 0
2 1
3 0
4 2
5 1
6 0
7 3
8 4
9 1
10 0
11 3
12 10
13 6
14 1
15 0
16 0
17 18
18 21
19 8
20 1
21 0
22 -9
23 21
24 53
25 36
26 10
27 1
28 0
29 -27
30 0
31 99
32 116
33 55
34 12
35 1
36 0
37 -54
38 -81
39 117
40 286
41 215
42 78
43 14
44 1
45 0
46 -81
47 -270
48 -27
49 528
50 650
51 358
52 105
53 16
54 1

List of values

[1, 0, 1, 0, 2, 1, 0, 3, 4, 1, 0, 3, 10, 6, 1, 0, 0, 18, 21, 8, 1, 0, -9, 21, 53, 36, 10, 1, 0, -27, 0, 99, 116, 55, 12, 1, 0, -54, -81, 117, 286, 215, 78, 14, 1, 0, -81, -270, -27, 528, 650, 358, 105, 16, 1]