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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.

A135356 Triangle T(n,k) read by rows: coefficients in the recurrence of sequences which equal their n-th differences.

Table of values

n a(n)
1 2
2 2
3 0
4 3
5 -3
6 2
7 4
8 -6
9 4
10 0
11 5
12 -10
13 10
14 -5
15 2
16 6
17 -15
18 20
19 -15
20 6
21 0
22 7
23 -21
24 35
25 -35
26 21
27 -7
28 2
29 8
30 -28
31 56
32 -70
33 56
34 -28
35 8
36 0
37 9
38 -36
39 84
40 -126
41 126
42 -84
43 36
44 -9
45 2
46 10
47 -45
48 120
49 -210
50 252
51 -210
52 120
53 -45
54 10
55 0
56 11
57 -55
58 165
59 -330
60 462
61 -462
62 330
63 -165
64 55
65 -11
66 2

List of values

[2, 2, 0, 3, -3, 2, 4, -6, 4, 0, 5, -10, 10, -5, 2, 6, -15, 20, -15, 6, 0, 7, -21, 35, -35, 21, -7, 2, 8, -28, 56, -70, 56, -28, 8, 0, 9, -36, 84, -126, 126, -84, 36, -9, 2, 10, -45, 120, -210, 252, -210, 120, -45, 10, 0, 11, -55, 165, -330, 462, -462, 330, -165, 55, -11, 2]