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A003987 as a simple table

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

[0,1,1,2,0,2,3,3,3,3,4,2,0,2,4,5,5,1,1,5,5,6,4,6,
 0,6,4,6,7,7,7,7,7,7,7,7,8,6,4,6,0,6,4,6,8,9,9,5,5,
 1,1,5,5,9,9,10,8,10,4,2,0,2,4,10,8,10,11,11,11,11,
 3,3,3,3,11,11,11,11,12,10,8,10,12,2,0,2,12,10,8,
 10,12,13,13,9,9]

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Last modified February 20 20:12 EST 2018. Contains 299385 sequences. (Running on oeis4.)