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.

A122765 Triangle read by rows: Let p(k, x) = x*p(k-1, x) - p(k-2, x). Then T(k,x) = dp(k,x)/dx.

Table of values

n a(n)
1 1
2 -1
3 2
4 -2
5 -2
6 3
7 2
8 -6
9 -3
10 4
11 3
12 6
13 -12
14 -4
15 5
16 -3
17 12
18 12
19 -20
20 -5
21 6
22 -4
23 -12
24 30
25 20
26 -30
27 -6
28 7
29 4
30 -20
31 -30
32 60
33 30
34 -42
35 -7
36 8
37 5
38 20
39 -60
40 -60
41 105
42 42
43 -56
44 -8
45 9
46 -5
47 30
48 60
49 -140
50 -105
51 168
52 56
53 -72
54 -9
55 10

List of values

[1, -1, 2, -2, -2, 3, 2, -6, -3, 4, 3, 6, -12, -4, 5, -3, 12, 12, -20, -5, 6, -4, -12, 30, 20, -30, -6, 7, 4, -20, -30, 60, 30, -42, -7, 8, 5, 20, -60, -60, 105, 42, -56, -8, 9, -5, 30, 60, -140, -105, 168, 56, -72, -9, 10]