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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.

A120437 Differences of A037314 (sum of base-3 digits of n = sum of base-9 digits of n).

Table of values

n a(n)
1 1
2 1
3 7
4 1
5 1
6 7
7 1
8 1
9 61
10 1
11 1
12 7
13 1
14 1
15 7
16 1
17 1
18 61
19 1
20 1
21 7
22 1
23 1
24 7
25 1
26 1
27 547
28 1
29 1
30 7
31 1
32 1
33 7
34 1
35 1
36 61
37 1
38 1
39 7
40 1
41 1
42 7
43 1
44 1
45 61
46 1
47 1
48 7
49 1
50 1
51 7
52 1
53 1
54 547
55 1
56 1
57 7
58 1
59 1
60 7
61 1
62 1
63 61
64 1
65 1
66 7
67 1
68 1
69 7
70 1
71 1
72 61
73 1
74 1
75 7
76 1
77 1
78 7
79 1
80 1

List of values

[1, 1, 7, 1, 1, 7, 1, 1, 61, 1, 1, 7, 1, 1, 7, 1, 1, 61, 1, 1, 7, 1, 1, 7, 1, 1, 547, 1, 1, 7, 1, 1, 7, 1, 1, 61, 1, 1, 7, 1, 1, 7, 1, 1, 61, 1, 1, 7, 1, 1, 7, 1, 1, 547, 1, 1, 7, 1, 1, 7, 1, 1, 61, 1, 1, 7, 1, 1, 7, 1, 1, 61, 1, 1, 7, 1, 1, 7, 1, 1]

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