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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.

A131841 Additive persistence of Woodall numbers.

Table of values

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

List of values

[0, 0, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 2, 2, 2, 3, 2, 2, 2, 2, 2, 3, 2, 2, 2, 2, 3, 2, 3, 3, 3, 3, 2, 3, 2, 2, 2, 3, 3, 3, 3, 3, 2, 2, 3, 3, 3, 3, 3, 3, 2, 3, 2, 3, 2, 3, 3, 3, 3, 3, 3, 3, 2, 2, 3, 2, 2, 3, 3, 3, 2, 2, 2, 2, 2, 3, 2, 2, 2, 3, 3, 2, 3, 3, 3]

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