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A078778
as a simple table
n
a(n)
1
4
2
5
3
6
4
7
5
8
6
10
7
13
8
14
9
19
10
20
11
24
12
25
13
26
14
28
15
34
16
38
17
48
18
54
19
55
20
59
21
71
22
75
23
92
24
109
25
114
26
115
[4,5,6,7,8,10,13,14,19,20,24,25,26,28,34,38,48,54, 55,59,71,75,92,109,114,115]