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.

A166357 Exponential Riordan array [1+x*arctanh(x), x].

Table of values

n a(n)
0 1
1 0
2 1
3 2
4 0
5 1
6 0
7 6
8 0
9 1
10 8
11 0
12 12
13 0
14 1
15 0
16 40
17 0
18 20
19 0
20 1
21 144
22 0
23 120
24 0
25 30
26 0
27 1
28 0
29 1008
30 0
31 280
32 0
33 42
34 0
35 1
36 5760
37 0
38 4032
39 0
40 560
41 0
42 56
43 0
44 1
45 0
46 51840
47 0
48 12096
49 0
50 1008
51 0
52 72
53 0
54 1
55 403200
56 0
57 259200
58 0
59 30240
60 0
61 1680
62 0
63 90
64 0
65 1

List of values

[1, 0, 1, 2, 0, 1, 0, 6, 0, 1, 8, 0, 12, 0, 1, 0, 40, 0, 20, 0, 1, 144, 0, 120, 0, 30, 0, 1, 0, 1008, 0, 280, 0, 42, 0, 1, 5760, 0, 4032, 0, 560, 0, 56, 0, 1, 0, 51840, 0, 12096, 0, 1008, 0, 72, 0, 1, 403200, 0, 259200, 0, 30240, 0, 1680, 0, 90, 0, 1]