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A156723 as a simple table

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

[0,1,0,1,0,1,2,3,2,3,4,3,4,3,4,5,4,5,4,5,6,7,6,7,
 8,9,8,9,8,9,10,9,10,11,12,11,12,13,12,13,12,13,14,
 15,14,15,16,17,16,17,18,17,18,17,18,19,18,19,18,
 19,20,21,20,21,22,21,22,21,22,23,22,23,24,25,24,
 25,26,27,26,27]

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Last modified September 25 17:14 EDT 2021. Contains 347659 sequences. (Running on oeis4.)