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A059218
as a simple table
n
a(n)
1
1
2
6
3
10
4
14
5
56
6
239
7
623
8
874
9
1246
10
2462
11
4711
12
16003
13
31486
14
32081
15
45115
16
143777
17
171271
[1,6,10,14,56,239,623,874,1246,2462,4711,16003, 31486,32081,45115,143777,171271]