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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.

A145462 Eigentriangle, row sums = the Padovan sequence, A000931.

Table of values

n a(n)
6 1
7 1
8 1
9 -1
10 1
11 2
12 0
13 -1
14 2
15 2
16 1
17 0
18 -2
19 2
20 3
21 -1
22 1
23 0
24 -2
25 3
26 4
27 0
28 -1
29 2
30 0
31 -3
32 4
33 5
34 1
35 0
36 -2
37 2
38 0
39 -4
40 5
41 7
42 -1
43 1
44 0
45 -2
46 3
47 0
48 -5
49 7
50 9
51 0
52 -1
53 2
54 0
55 -3
56 4
57 0
58 -7
59 9
60 12
61 1
62 0
63 -2
64 2
65 0
66 -4
67 5
68 0
69 -9
70 12
71 16
72 -1
73 1
74 0
75 -2
76 3
77 0
78 -5
79 7
80 0
81 -12
82 16
83 21

List of values

[1, 1, 1, -1, 1, 2, 0, -1, 2, 2, 1, 0, -2, 2, 3, -1, 1, 0, -2, 3, 4, 0, -1, 2, 0, -3, 4, 5, 1, 0, -2, 2, 0, -4, 5, 7, -1, 1, 0, -2, 3, 0, -5, 7, 9, 0, -1, 2, 0, -3, 4, 0, -7, 9, 12, 1, 0, -2, 2, 0, -4, 5, 0, -9, 12, 16, -1, 1, 0, -2, 3, 0, -5, 7, 0, -12, 16, 21]

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