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.

A249057 Triangular array: Row n shows the coefficients of polynomials p(n,x) defined in Comments.

Table of values

n a(n)
0 1
1 4
2 1
3 5
4 4
5 1
6 24
7 11
8 4
9 1
10 35
11 52
12 18
13 4
14 1
15 192
16 123
17 84
18 26
19 4
20 1
21 315
22 660
23 285
24 120
25 35
26 4
27 1
28 1920
29 1545
30 1500
31 545
32 160
33 45
34 4
35 1
36 3465
37 9180
38 4680
39 2820
40 930
41 204
42 56
43 4
44 1
45 23040
46 22005
47 27180
48 11220
49 4740
50 1470
51 252
52 68
53 4
54 1
55 45045
56 142380

List of values

[1, 4, 1, 5, 4, 1, 24, 11, 4, 1, 35, 52, 18, 4, 1, 192, 123, 84, 26, 4, 1, 315, 660, 285, 120, 35, 4, 1, 1920, 1545, 1500, 545, 160, 45, 4, 1, 3465, 9180, 4680, 2820, 930, 204, 56, 4, 1, 23040, 22005, 27180, 11220, 4740, 1470, 252, 68, 4, 1, 45045, 142380]