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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.

A322836 Square array A(n,k), n >= 0, k >= 0, read by antidiagonals, where A(n,k) is Chebyshev polynomial of the first kind T_{n}(x), evaluated at x=k.

Table of values

n a(n)
0 1
1 1
2 0
3 1
4 1
5 -1
6 1
7 2
8 1
9 0
10 1
11 3
12 7
13 1
14 1
15 1
16 4
17 17
18 26
19 1
20 0
21 1
22 5
23 31
24 99
25 97
26 1
27 -1
28 1
29 6
30 49
31 244
32 577
33 362
34 1
35 0
36 1
37 7
38 71
39 485
40 1921
41 3363
42 1351
43 1
44 1
45 1
46 8
47 97
48 846
49 4801
50 15124
51 19601
52 5042
53 1
54 0
55 1
56 9
57 127
58 1351
59 10081
60 47525
61 119071
62 114243
63 18817
64 1
65 -1

List of values

[1, 1, 0, 1, 1, -1, 1, 2, 1, 0, 1, 3, 7, 1, 1, 1, 4, 17, 26, 1, 0, 1, 5, 31, 99, 97, 1, -1, 1, 6, 49, 244, 577, 362, 1, 0, 1, 7, 71, 485, 1921, 3363, 1351, 1, 1, 1, 8, 97, 846, 4801, 15124, 19601, 5042, 1, 0, 1, 9, 127, 1351, 10081, 47525, 119071, 114243, 18817, 1, -1]