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A121928 as a simple table

n a(n)
1 0
2 1
3 2
4 3
5 3
6 4
7 5
8 5
9 6
10 7
11 7
12 8
13 9
14 9
15 10
16 11
17 11
18 12
19 13
20 13
21 14
22 15
23 15
24 16
25 17
26 18
27 18
28 19
29 20
30 20
31 21
32 22
33 22
34 23
35 24
36 24
37 25
38 26
39 26
40 27
41 28
42 28
43 29
44 30
45 30
46 31
47 32
48 33
49 33
50 34
51 35
52 35
53 36
54 37
55 37
56 38
57 39
58 39
59 40
60 41
61 41
62 42
63 43
64 43
65 44
66 45
67 45
68 46
69 47
70 48
71 48
72 49
73 50
74 50

[0,1,2,3,3,4,5,5,6,7,7,8,9,9,10,11,11,12,13,13,14,
 15,15,16,17,18,18,19,20,20,21,22,22,23,24,24,25,
 26,26,27,28,28,29,30,30,31,32,33,33,34,35,35,36,
 37,37,38,39,39,40,41,41,42,43,43,44,45,45,46,47,
 48,48,49,50,50]

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Last modified January 17 12:45 EST 2020. Contains 330958 sequences. (Running on oeis4.)