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.

A105809 Riordan array (1/(1 - x - x^2), x/(1 - x)).

Table of values

n a(n)
0 1
1 1
2 1
3 2
4 2
5 1
6 3
7 4
8 3
9 1
10 5
11 7
12 7
13 4
14 1
15 8
16 12
17 14
18 11
19 5
20 1
21 13
22 20
23 26
24 25
25 16
26 6
27 1
28 21
29 33
30 46
31 51
32 41
33 22
34 7
35 1
36 34
37 54
38 79
39 97
40 92
41 63
42 29
43 8
44 1
45 55
46 88
47 133
48 176
49 189
50 155
51 92
52 37
53 9
54 1
55 89
56 143
57 221
58 309
59 365
60 344
61 247
62 129
63 46
64 10
65 1
66 144
67 232
68 364
69 530
70 674
71 709
72 591

List of values

[1, 1, 1, 2, 2, 1, 3, 4, 3, 1, 5, 7, 7, 4, 1, 8, 12, 14, 11, 5, 1, 13, 20, 26, 25, 16, 6, 1, 21, 33, 46, 51, 41, 22, 7, 1, 34, 54, 79, 97, 92, 63, 29, 8, 1, 55, 88, 133, 176, 189, 155, 92, 37, 9, 1, 89, 143, 221, 309, 365, 344, 247, 129, 46, 10, 1, 144, 232, 364, 530, 674, 709, 591]