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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.

A043264 Sum of the digits of the n-th base 5 palindrome.

Table of values

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

List of values

[0, 1, 2, 3, 4, 2, 4, 6, 8, 2, 3, 4, 5, 6, 4, 5, 6, 7, 8, 6, 7, 8, 9, 10, 8, 9, 10, 11, 12, 2, 4, 6, 8, 10, 4, 6, 8, 10, 12, 6, 8, 10, 12, 14, 8, 10, 12, 14, 16, 2, 3, 4, 5, 6, 4, 5, 6, 7, 8, 6, 7, 8, 9, 10, 8, 9, 10, 11, 12, 10, 11, 12, 13, 14, 4, 5, 6, 7, 8, 6]

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