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A047949 as a simple table

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

[0,0,1,2,1,4,5,4,7,8,7,10,9,8,13,14,13,12,17,16,
 19,20,19,22,21,20,25,24,23,28,29,28,27,32,31,34,
 35,34,33,38,37,40,39,38,43,42,41,30,47,46,49,50,
 49,52,53,52,55,54,53,48,51,50,45,62,61,64,63,62,
 67,68,67,66]

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Last modified April 19 12:14 EDT 2024. Contains 371792 sequences. (Running on oeis4.)