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.

A217478 Triangle of coefficients of polynomials providing the second term of the numerator for the generating function for odd powers (2*m+1) of Chebyshev S-polynomials. The present polynomials are called P(m;1,x^2).

Table of values

n a(n)
1 -2
2 3
3 -4
4 -4
5 10
6 -6
7 5
8 -20
9 21
10 -8
11 -6
12 35
13 -56
14 36
15 -10
16 7
17 -56
18 126
19 -120
20 55
21 -12
22 -8
23 84
24 -252
25 330
26 -220
27 78
28 -14
29 9
30 -120
31 462
32 -792
33 715
34 -364
35 105
36 -16
37 -10
38 165
39 -792
40 1716
41 -2002
42 1365
43 -560
44 136
45 -18
46 11
47 -220
48 1287
49 -3432
50 5005
51 -4368
52 2380
53 -816
54 171
55 -20

List of values

[-2, 3, -4, -4, 10, -6, 5, -20, 21, -8, -6, 35, -56, 36, -10, 7, -56, 126, -120, 55, -12, -8, 84, -252, 330, -220, 78, -14, 9, -120, 462, -792, 715, -364, 105, -16, -10, 165, -792, 1716, -2002, 1365, -560, 136, -18, 11, -220, 1287, -3432, 5005, -4368, 2380, -816, 171, -20]