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.

A116389 Riordan array (1/sqrt(1-4*x^2), (1+x)/sqrt(1-4*x^2) -1).

Table of values

n a(n)
0 1
1 0
2 1
3 2
4 2
5 1
6 0
7 4
8 4
9 1
10 6
11 10
12 10
13 6
14 1
15 0
16 16
17 28
18 20
19 8
20 1
21 20
22 44
23 62
24 62
25 34
26 10
27 1
28 0
29 64
30 152
31 168
32 120
33 52
34 12
35 1
36 70
37 186
38 328
39 436
40 374
41 210
42 74
43 14
44 1
45 0
46 256
47 748
48 1084
49 1072
50 736
51 340
52 100
53 16
54 1
55 252
56 772
57 1606
58 2598
59 2924
60 2332
61 1326
62 518
63 130
64 18
65 1

List of values

[1, 0, 1, 2, 2, 1, 0, 4, 4, 1, 6, 10, 10, 6, 1, 0, 16, 28, 20, 8, 1, 20, 44, 62, 62, 34, 10, 1, 0, 64, 152, 168, 120, 52, 12, 1, 70, 186, 328, 436, 374, 210, 74, 14, 1, 0, 256, 748, 1084, 1072, 736, 340, 100, 16, 1, 252, 772, 1606, 2598, 2924, 2332, 1326, 518, 130, 18, 1]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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