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.

A136093 A generalized ( Shabat) type tree transformed Chebyshev recursion where: P(x,n)->C*P(c*x+d,n)+D: C=-1;c=-1;D=1;d=1: with substitution: x-1->x; as a triangular sequence of coefficients.

Table of values

n a(n)
1 1
2 0
3 1
4 -1
5 -1
6 1
7 0
8 -3
9 -1
10 1
11 1
12 0
13 -4
14 -1
15 1
16 0
17 3
18 1
19 -5
20 -1
21 1
22 -1
23 -1
24 7
25 2
26 -6
27 -1
28 1
29 0
30 -5
31 -2
32 12
33 3
34 -7
35 -1
36 1
37 1
38 0
39 -12
40 -4
41 18
42 4
43 -8
44 -1
45 1
46 0
47 5
48 2
49 -24
50 -7
51 25
52 5
53 -9
54 -1
55 1
56 -1
57 -1
58 17
59 6
60 -42
61 -11
62 33
63 6
64 -10
65 -1
66 1

List of values

[1, 0, 1, -1, -1, 1, 0, -3, -1, 1, 1, 0, -4, -1, 1, 0, 3, 1, -5, -1, 1, -1, -1, 7, 2, -6, -1, 1, 0, -5, -2, 12, 3, -7, -1, 1, 1, 0, -12, -4, 18, 4, -8, -1, 1, 0, 5, 2, -24, -7, 25, 5, -9, -1, 1, -1, -1, 17, 6, -42, -11, 33, 6, -10, -1, 1]