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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.

A181297 Triangle read by rows: T(n,k) is the number of 2-compositions of n having k even entries (0<=k<=n).

Table of values

n a(n)
0 1
1 0
2 2
3 1
4 0
5 6
6 0
7 8
8 0
9 16
10 3
11 0
12 35
13 0
14 44
15 0
16 28
17 0
18 132
19 0
20 120
21 8
22 0
23 160
24 0
25 460
26 0
27 328
28 0
29 92
30 0
31 748
32 0
33 1528
34 0
35 896
36 21
37 0
38 642
39 0
40 3117
41 0
42 4916
43 0
44 2448
45 0
46 290
47 0
48 3552
49 0
50 12062
51 0
52 15456
53 0
54 6688
55 55
56 0
57 2380
58 0
59 17119
60 0
61 44318
62 0
63 47760
64 0
65 18272
66 0
67 888
68 0

List of values

[1, 0, 2, 1, 0, 6, 0, 8, 0, 16, 3, 0, 35, 0, 44, 0, 28, 0, 132, 0, 120, 8, 0, 160, 0, 460, 0, 328, 0, 92, 0, 748, 0, 1528, 0, 896, 21, 0, 642, 0, 3117, 0, 4916, 0, 2448, 0, 290, 0, 3552, 0, 12062, 0, 15456, 0, 6688, 55, 0, 2380, 0, 17119, 0, 44318, 0, 47760, 0, 18272, 0, 888, 0]