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.

A174302 Riordan array ((1-x^2c(x)^2)/(1-xc(x)-x^2c(x)^2),xc(x)), c(x) the g.f. of A000108.

Table of values

n a(n)
0 1
1 1
2 1
3 2
4 2
5 1
6 6
7 5
8 3
9 1
10 19
11 15
12 9
13 4
14 1
15 63
16 48
17 29
18 14
19 5
20 1
21 215
22 160
23 97
24 49
25 20
26 6
27 1
28 749
29 548
30 333
31 173
32 76
33 27
34 7
35 1
36 2650
37 1914
38 1165
39 617
40 284
41 111
42 35
43 8
44 1
45 9490
46 6785
47 4135
48 2221
49 1056
50 439
51 155
52 44
53 9
54 1

List of values

[1, 1, 1, 2, 2, 1, 6, 5, 3, 1, 19, 15, 9, 4, 1, 63, 48, 29, 14, 5, 1, 215, 160, 97, 49, 20, 6, 1, 749, 548, 333, 173, 76, 27, 7, 1, 2650, 1914, 1165, 617, 284, 111, 35, 8, 1, 9490, 6785, 4135, 2221, 1056, 439, 155, 44, 9, 1]