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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.

A249303 Triangular array: row n gives the coefficients of the polynomial p(n,x) defined in Comments.

Table of values

n a(n)
0 1
1 0
2 1
3 -1
4 2
5 -1
6 1
7 1
8 0
9 -2
10 3
11 1
12 -4
13 3
14 1
15 1
16 -2
17 -2
18 4
19 0
20 3
21 -9
22 6
23 1
24 -1
25 6
26 -9
27 0
28 5
29 -1
30 3
31 3
32 -15
33 10
34 1
35 0
36 -4
37 18
38 -24
39 5
40 6
41 1
42 -8
43 18
44 -6
45 -20
46 15
47 1
48 1
49 -4
50 -4
51 36
52 -49
53 14
54 7
55 0
56 5
57 -30
58 60
59 -35
60 -21
61 21
62 1
63 -1
64 10
65 -30
66 20
67 50
68 -84
69 28
70 8

List of values

[1, 0, 1, -1, 2, -1, 1, 1, 0, -2, 3, 1, -4, 3, 1, 1, -2, -2, 4, 0, 3, -9, 6, 1, -1, 6, -9, 0, 5, -1, 3, 3, -15, 10, 1, 0, -4, 18, -24, 5, 6, 1, -8, 18, -6, -20, 15, 1, 1, -4, -4, 36, -49, 14, 7, 0, 5, -30, 60, -35, -21, 21, 1, -1, 10, -30, 20, 50, -84, 28, 8]

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