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A027696
as a simple table
n
a(n)
0
3
1
4
2
6
3
8
4
10
5
11
6
14
7
17
8
30
9
41
10
43
11
50
12
60
13
88
14
145
15
276
16
322
17
374
18
823
19
1152
[3,4,6,8,10,11,14,17,30,41,43,50,60,88,145,276, 322,374,823,1152]