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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.

A357136 Triangle read by rows where T(n,k) is the number of integer compositions of n with alternating sum k = 0..n. Part of the full triangle A097805.

Table of values

n a(n)
0 1
1 0
2 1
3 1
4 0
5 1
6 0
7 2
8 0
9 1
10 3
11 0
12 3
13 0
14 1
15 0
16 6
17 0
18 4
19 0
20 1
21 10
22 0
23 10
24 0
25 5
26 0
27 1
28 0
29 20
30 0
31 15
32 0
33 6
34 0
35 1
36 35
37 0
38 35
39 0
40 21
41 0
42 7
43 0
44 1
45 0
46 70
47 0
48 56
49 0
50 28
51 0
52 8
53 0
54 1
55 126
56 0
57 126
58 0
59 84
60 0
61 36
62 0
63 9
64 0
65 1
66 0
67 252
68 0
69 210
70 0
71 120
72 0
73 45
74 0
75 10
76 0
77 1

List of values

[1, 0, 1, 1, 0, 1, 0, 2, 0, 1, 3, 0, 3, 0, 1, 0, 6, 0, 4, 0, 1, 10, 0, 10, 0, 5, 0, 1, 0, 20, 0, 15, 0, 6, 0, 1, 35, 0, 35, 0, 21, 0, 7, 0, 1, 0, 70, 0, 56, 0, 28, 0, 8, 0, 1, 126, 0, 126, 0, 84, 0, 36, 0, 9, 0, 1, 0, 252, 0, 210, 0, 120, 0, 45, 0, 10, 0, 1]

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