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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.

A332670 Triangle read by rows where T(n,k) is the number of length-k compositions of n whose negation is unimodal.

Table of values

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

List of values

[1, 0, 1, 0, 1, 1, 0, 1, 2, 1, 0, 1, 3, 2, 1, 0, 1, 4, 5, 2, 1, 0, 1, 5, 7, 5, 2, 1, 0, 1, 6, 11, 10, 5, 2, 1, 0, 1, 7, 15, 16, 10, 5, 2, 1, 0, 1, 8, 20, 24, 20, 10, 5, 2, 1, 0, 1, 9, 25, 36, 31, 20, 10, 5, 2, 1, 0, 1, 10, 32, 50, 50, 36, 20, 10, 5, 2, 1]

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