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.

A158687 Riordan array (1/(1-x),x(1+x)^2/(1-x)).

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 4
5 1
6 1
7 8
8 7
9 1
10 1
11 12
12 24
13 10
14 1
15 1
16 16
17 56
18 49
19 13
20 1
21 1
22 20
23 104
24 160
25 83
26 16
27 1
28 1
29 24
30 168
31 400
32 351
33 126
34 19
35 1
36 1
37 28
38 248
39 832
40 1120
41 656
42 178
43 22
44 1
45 1
46 32
47 344
48 1520
49 2912
50 2561
51 1102
52 239
53 25
54 1

List of values

[1, 1, 1, 1, 4, 1, 1, 8, 7, 1, 1, 12, 24, 10, 1, 1, 16, 56, 49, 13, 1, 1, 20, 104, 160, 83, 16, 1, 1, 24, 168, 400, 351, 126, 19, 1, 1, 28, 248, 832, 1120, 656, 178, 22, 1, 1, 32, 344, 1520, 2912, 2561, 1102, 239, 25, 1]