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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.

A358360 The 3-adic valuation of the central Delannoy numbers (sequence A001850).

Table of values

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

List of values

[0, 1, 0, 2, 1, 2, 0, 1, 0, 3, 2, 3, 1, 2, 1, 3, 2, 3, 0, 1, 0, 2, 1, 2, 0, 1, 0, 4, 3, 4, 2, 3, 2, 4, 3, 4, 1, 2, 1, 3, 2, 3, 1, 2, 1, 4, 3, 4, 2, 3, 2, 4, 3, 4, 0, 1, 0, 2, 1, 2, 0, 1, 0, 3, 2, 3, 1, 2, 1, 3, 2, 3, 0, 1, 0, 2, 1, 2, 0, 1, 0, 5, 4, 5, 3, 4, 3]

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