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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.

A282715 Number of nonzero entries in row n of the base-3 generalized Pascal triangle P_3.

Table of values

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

List of values

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

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