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.

A167772 Riordan array (c(x)/(1+x*c(x)), x*c(x)), c(x) the g.f. of A000108.

Table of values

n a(n)
0 1
1 0
2 1
3 1
4 1
5 1
6 2
7 3
8 2
9 1
10 6
11 8
12 6
13 3
14 1
15 18
16 24
17 18
18 10
19 4
20 1
21 57
22 75
23 57
24 33
25 15
26 5
27 1
28 186
29 243
30 186
31 111
32 54
33 21
34 6
35 1
36 622
37 808
38 622
39 379
40 193
41 82
42 28
43 7
44 1
45 2120
46 2742
47 2120
48 1312
49 690
50 311
51 118
52 36
53 8
54 1
55 7338
56 9458
57 7338
58 4596
59 2476
60 1164
61 474
62 163
63 45
64 9
65 1

List of values

[1, 0, 1, 1, 1, 1, 2, 3, 2, 1, 6, 8, 6, 3, 1, 18, 24, 18, 10, 4, 1, 57, 75, 57, 33, 15, 5, 1, 186, 243, 186, 111, 54, 21, 6, 1, 622, 808, 622, 379, 193, 82, 28, 7, 1, 2120, 2742, 2120, 1312, 690, 311, 118, 36, 8, 1, 7338, 9458, 7338, 4596, 2476, 1164, 474, 163, 45, 9, 1]