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A137512 as a simple table

n a(n)
1 1
2 1
3 2
4 3
5 3
6 3
7 4
8 5
9 5
10 6
11 6
12 6
13 7
14 7
15 8
16 9
17 9
18 10
19 10
20 11
21 11
22 12
23 12
24 12
25 13
26 13
27 14
28 14
29 15
30 15
31 16

[1,1,2,3,3,3,4,5,5,6,6,6,7,7,8,9,9,10,10,11,11,12,
 12,12,13,13,14,14,15,15,16]

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Last modified November 15 01:22 EST 2019. Contains 329142 sequences. (Running on oeis4.)