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A090638 as a simple table

n a(n)
1 0
2 1
3 1
4 2
5 3
6 3
7 4
8 4
9 5
10 6
11 6
12 7
13 8
14 8
15 9
16 9
17 10
18 11
19 11
20 12
21 12
22 13
23 14
24 14
25 15
26 16
27 16
28 17
29 17

[0,1,1,2,3,3,4,4,5,6,6,7,8,8,9,9,10,11,11,12,12,
 13,14,14,15,16,16,17,17]

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Last modified February 28 01:06 EST 2024. Contains 370379 sequences. (Running on oeis4.)