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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.

A368464 Number of odd terms in each row of the iterates of the Christmas tree pattern map (A367508).

Table of values

n a(n)
1 1
2 0
3 2
4 1
5 0
6 3
7 0
8 2
9 0
10 2
11 0
12 4
13 1
14 0
15 3
16 1
17 0
18 3
19 0
20 3
21 0
22 5
23 0
24 2
25 0
26 2
27 0
28 4
29 0
30 2
31 0
32 2
33 0
34 4
35 0
36 2
37 0
38 4
39 0
40 4
41 0
42 6
43 1
44 0
45 3
46 1
47 0
48 3
49 0
50 3
51 0
52 5
53 1
54 0
55 3
56 1
57 0
58 3
59 0
60 3
61 0
62 5
63 1
64 0
65 3
66 0
67 3
68 0
69 5
70 0
71 3
72 0
73 5
74 0
75 5
76 0
77 7
78 0
79 2
80 0
81 2
82 0
83 4
84 0
85 2
86 0
87 2
88 0

List of values

[1, 0, 2, 1, 0, 3, 0, 2, 0, 2, 0, 4, 1, 0, 3, 1, 0, 3, 0, 3, 0, 5, 0, 2, 0, 2, 0, 4, 0, 2, 0, 2, 0, 4, 0, 2, 0, 4, 0, 4, 0, 6, 1, 0, 3, 1, 0, 3, 0, 3, 0, 5, 1, 0, 3, 1, 0, 3, 0, 3, 0, 5, 1, 0, 3, 0, 3, 0, 5, 0, 3, 0, 5, 0, 5, 0, 7, 0, 2, 0, 2, 0, 4, 0, 2, 0, 2, 0]

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