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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.

A087230 a(n) is the 2-adic valuation of 6*n + 4.

Table of values

n a(n)
0 2
1 1
2 4
3 1
4 2
5 1
6 3
7 1
8 2
9 1
10 6
11 1
12 2
13 1
14 3
15 1
16 2
17 1
18 4
19 1
20 2
21 1
22 3
23 1
24 2
25 1
26 5
27 1
28 2
29 1
30 3
31 1
32 2
33 1
34 4
35 1
36 2
37 1
38 3
39 1
40 2
41 1
42 8
43 1
44 2
45 1
46 3
47 1
48 2
49 1
50 4
51 1
52 2
53 1
54 3
55 1
56 2
57 1
58 5
59 1
60 2
61 1
62 3
63 1
64 2
65 1
66 4
67 1
68 2
69 1
70 3
71 1
72 2
73 1
74 6
75 1
76 2
77 1
78 3
79 1
80 2
81 1
82 4
83 1
84 2
85 1
86 3
87 1
88 2
89 1
90 5
91 1
92 2
93 1
94 3
95 1
96 2
97 1
98 4
99 1
100 2
101 1
102 3
103 1
104 2
105 1

List of values

[2, 1, 4, 1, 2, 1, 3, 1, 2, 1, 6, 1, 2, 1, 3, 1, 2, 1, 4, 1, 2, 1, 3, 1, 2, 1, 5, 1, 2, 1, 3, 1, 2, 1, 4, 1, 2, 1, 3, 1, 2, 1, 8, 1, 2, 1, 3, 1, 2, 1, 4, 1, 2, 1, 3, 1, 2, 1, 5, 1, 2, 1, 3, 1, 2, 1, 4, 1, 2, 1, 3, 1, 2, 1, 6, 1, 2, 1, 3, 1, 2, 1, 4, 1, 2, 1, 3, 1, 2, 1, 5, 1, 2, 1, 3, 1, 2, 1, 4, 1, 2, 1, 3, 1, 2, 1]