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A173877
as a simple table
n
a(n)
1
1
2
3
3
6
4
17
5
13
6
40
7
27
8
106
9
78
10
127
11
79
12
391
13
129
14
321
15
358
16
832
17
285
18
1070
19
409
20
1549
[1,3,6,17,13,40,27,106,78,127,79,391,129,321,358, 832,285,1070,409,1549]