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.

A259286 Triangle of polynomials P(n,y) of order n in y, generated by the extension to the variable y of the e.g.f. of A259239(n), i.e., exp(y*(x-sqrt(1-x^2)+1)).

Table of values

n a(n)
1 1
2 1
3 1
4 0
5 3
6 1
7 3
8 3
9 6
10 1
11 0
12 15
13 15
14 10
15 1
16 45
17 45
18 60
19 45
20 15
21 1
22 0
23 315
24 315
25 210
26 105
27 21
28 1
29 1575
30 1575
31 1890
32 1365
33 630
34 210
35 28
36 1
37 0
38 14175
39 14175
40 9450
41 4725
42 1638
43 378
44 36
45 1
46 99225
47 99225
48 113400
49 80325
50 38745
51 14175
52 3780
53 630
54 45
55 1

List of values

[1, 1, 1, 0, 3, 1, 3, 3, 6, 1, 0, 15, 15, 10, 1, 45, 45, 60, 45, 15, 1, 0, 315, 315, 210, 105, 21, 1, 1575, 1575, 1890, 1365, 630, 210, 28, 1, 0, 14175, 14175, 9450, 4725, 1638, 378, 36, 1, 99225, 99225, 113400, 80325, 38745, 14175, 3780, 630, 45, 1]