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.

A117362 Riordan array (1-2x,x(1-x)).

Table of values

n a(n)
0 1
1 -2
2 1
3 0
4 -3
5 1
6 0
7 2
8 -4
9 1
10 0
11 0
12 5
13 -5
14 1
15 0
16 0
17 -2
18 9
19 -6
20 1
21 0
22 0
23 0
24 -7
25 14
26 -7
27 1
28 0
29 0
30 0
31 2
32 -16
33 20
34 -8
35 1
36 0
37 0
38 0
39 0
40 9
41 -30
42 27
43 -9
44 1
45 0
46 0
47 0
48 0
49 -2
50 25
51 -50
52 35
53 -10
54 1
55 0
56 0
57 0
58 0
59 0
60 -11
61 55
62 -77
63 44
64 -11
65 1

List of values

[1, -2, 1, 0, -3, 1, 0, 2, -4, 1, 0, 0, 5, -5, 1, 0, 0, -2, 9, -6, 1, 0, 0, 0, -7, 14, -7, 1, 0, 0, 0, 2, -16, 20, -8, 1, 0, 0, 0, 0, 9, -30, 27, -9, 1, 0, 0, 0, 0, -2, 25, -50, 35, -10, 1, 0, 0, 0, 0, 0, -11, 55, -77, 44, -11, 1]