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A180018 as a simple table

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

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

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Last modified April 19 18:05 EDT 2024. Contains 371798 sequences. (Running on oeis4.)