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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.

A207823 Triangle of coefficients of Chebyshev's S(n,x+4) polynomials (exponents of x in increasing order).

Table of values

n a(n)
0 1
1 4
2 1
3 15
4 8
5 1
6 56
7 46
8 12
9 1
10 209
11 232
12 93
13 16
14 1
15 780
16 1091
17 592
18 156
19 20
20 1
21 2911
22 4912
23 3366
24 1200
25 235
26 24
27 1
28 10864
29 21468
30 17784
31 8010
32 2120
33 330
34 28
35 1
36 40545
37 91824
38 89238
39 48624
40 16255
41 3416
42 441
43 32
44 1
45 151316
46 386373
47 430992
48 275724
49 111524
50 29589
51 5152
52 568
53 36
54 1

List of values

[1, 4, 1, 15, 8, 1, 56, 46, 12, 1, 209, 232, 93, 16, 1, 780, 1091, 592, 156, 20, 1, 2911, 4912, 3366, 1200, 235, 24, 1, 10864, 21468, 17784, 8010, 2120, 330, 28, 1, 40545, 91824, 89238, 48624, 16255, 3416, 441, 32, 1, 151316, 386373, 430992, 275724, 111524, 29589, 5152, 568, 36, 1]