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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.

A010076 a(n) = sum of base-9 digits of a(n-1) + sum of base-9 digits of a(n-2).

Table of values

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

List of values

[0, 1, 1, 2, 3, 5, 8, 13, 13, 10, 7, 9, 8, 9, 9, 2, 3, 5, 8, 13, 13, 10, 7, 9, 8, 9, 9, 2, 3, 5, 8, 13, 13, 10, 7, 9, 8, 9, 9, 2, 3, 5, 8, 13, 13, 10, 7, 9, 8, 9, 9, 2, 3, 5, 8, 13, 13, 10, 7, 9, 8, 9, 9, 2, 3, 5, 8, 13, 13, 10, 7, 9, 8, 9, 9]

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