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A231898 as a simple table

n a(n)
1 -1
2 -1
3 2
4 -1
5 4
6 3
7 4
8 3
9 4
10 5
11 5
12 5
13 6
14 5
15 5
16 5
17 6
18 6
19 6
20 6
21 6
22 6
23 6
24 6
25 6
26 6 

[-1,-1,2,-1,4,3,4,3,4,5,5,5,6,5,5,5,6,6,6,6,6,6,6,
 6,6,6]

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Last modified September 14 12:31 EDT 2024. Contains 375921 sequences. (Running on oeis4.)