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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.

A317842 Dirichlet convolution of A284013 (= n - A002487(n)) with itself, where A002487 is Stern's Diatomic sequence.

Table of values

n a(n)
1 0
2 0
3 0
4 1
5 0
6 2
7 0
8 6
9 1
10 4
11 0
12 14
13 0
14 8
15 4
16 23
17 0
18 18
19 0
20 26
21 8
22 12
23 0
24 58
25 4
26 16
27 10
28 46
29 0
30 52
31 0
32 72
33 12
34 24
35 16
36 94
37 0
38 24
39 16
40 104
41 0
42 80
43 0
44 70
45 42
46 32
47 0
48 190
49 16
50 64
51 24
52 90
53 0
54 106
55 24
56 172
57 24
58 44
59 0
60 248
61 0
62 52
63 66
64 201
65 32
66 136
67 0
68 130
69 32
70 152
71 0
72 342
73 0
74 52
75 80
76 134
77 48
78 164
79 0
80 334
81 63
82 60
83 0
84 364
85 48
86 60
87 44

List of values

[0, 0, 0, 1, 0, 2, 0, 6, 1, 4, 0, 14, 0, 8, 4, 23, 0, 18, 0, 26, 8, 12, 0, 58, 4, 16, 10, 46, 0, 52, 0, 72, 12, 24, 16, 94, 0, 24, 16, 104, 0, 80, 0, 70, 42, 32, 0, 190, 16, 64, 24, 90, 0, 106, 24, 172, 24, 44, 0, 248, 0, 52, 66, 201, 32, 136, 0, 130, 32, 152, 0, 342, 0, 52, 80, 134, 48, 164, 0, 334, 63, 60, 0, 364, 48, 60, 44]