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.

A136209 Differentiation of A137286: Triangle of coefficients of differentiation recursive orthogonal Hermite polynomials given in Hochstadt's book : P(x, n) = x*P(x, n - 1) - n*P(x, n - 2).

Table of values

n a(n)
1 1
2 0
3 2
4 -5
5 0
6 3
7 0
8 -18
9 0
10 4
11 33
12 0
13 -42
14 0
15 5
16 0
17 174
18 0
19 -80
20 0
21 6
22 -279
23 0
24 555
25 0
26 -135
27 0
28 7
29 0
30 -1950
31 0
32 1380
33 0
34 -210
35 0
36 8
37 2895
38 0
39 -7920
40 0
41 2940
42 0
43 -308
44 0
45 9
46 0
47 25290
48 0
49 -24360
50 0
51 5628
52 0
53 -432
54 0
55 10
56 -35685
57 0
58 125055
59 0
60 -62790
61 0
62 9954
63 0
64 -585
65 0
66 11

List of values

[1, 0, 2, -5, 0, 3, 0, -18, 0, 4, 33, 0, -42, 0, 5, 0, 174, 0, -80, 0, 6, -279, 0, 555, 0, -135, 0, 7, 0, -1950, 0, 1380, 0, -210, 0, 8, 2895, 0, -7920, 0, 2940, 0, -308, 0, 9, 0, 25290, 0, -24360, 0, 5628, 0, -432, 0, 10, -35685, 0, 125055, 0, -62790, 0, 9954, 0, -585, 0, 11]