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A068817
as a simple table
n
a(n)
1
1
2
2
3
5
4
7
5
10
6
16
7
20
8
65
9
91
10
119
11
169
12
290
13
428
14
610
15
905
16
1051
17
3488
18
4526
19
6445
20
8693
21
32059
[1,2,5,7,10,16,20,65,91,119,169,290,428,610,905, 1051,3488,4526,6445,8693,32059]