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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.

A136397 Triangle read by rows of coefficients of Chebyshev-like polynomials P_{n,5}(x) with 0 omitted (exponents in increasing order).

Table of values

n a(n)
5 1
6 -5
7 2
8 10
9 -11
10 4
11 -10
12 25
13 -24
14 8
15 5
16 -30
17 61
18 -52
19 16
20 -1
21 20
22 -85
23 146
24 -112
25 32
26 -7
27 70
28 -231
29 344
30 -240
31 64
32 1
33 -34
34 225
35 -608
36 800
37 -512
38 128
39 9
40 -138
41 681
42 -1560
43 1840
44 -1088
45 256
46 -1
47 52
48 -501
49 1970
50 -3920
51 4192
52 -2304
53 512

List of values

[1, -5, 2, 10, -11, 4, -10, 25, -24, 8, 5, -30, 61, -52, 16, -1, 20, -85, 146, -112, 32, -7, 70, -231, 344, -240, 64, 1, -34, 225, -608, 800, -512, 128, 9, -138, 681, -1560, 1840, -1088, 256, -1, 52, -501, 1970, -3920, 4192, -2304, 512]