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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.

A276056 Triangle read by rows: T(n,k) is the number of compositions of n with parts in {1,3} and having asymmetry degree equal to k, (n>=0; 0<=k<=floor(n/4)).

Table of values

n a(n)
0 1
1 1
2 1
3 2
4 1
5 2
6 2
7 2
8 2
9 4
10 3
11 6
12 3
13 6
14 4
15 5
16 10
17 4
18 4
19 12
20 12
21 7
22 18
23 16
24 6
25 22
26 24
27 8
28 10
29 34
30 36
31 8
32 9
33 36
34 52
35 32
36 15
37 58
38 76
39 40
40 13
41 60
42 108
43 80
44 16
45 22
46 96
47 160
48 112
49 16
50 19
51 100
52 204
53 192
54 80
55 32
56 160
57 312
58 272
59 96
60 28
61 162
62 376
63 440
64 240
65 32

List of values

[1, 1, 1, 2, 1, 2, 2, 2, 2, 4, 3, 6, 3, 6, 4, 5, 10, 4, 4, 12, 12, 7, 18, 16, 6, 22, 24, 8, 10, 34, 36, 8, 9, 36, 52, 32, 15, 58, 76, 40, 13, 60, 108, 80, 16, 22, 96, 160, 112, 16, 19, 100, 204, 192, 80, 32, 160, 312, 272, 96, 28, 162, 376, 440, 240, 32]