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A098213
as a simple table
n
a(n)
1
1
2
1
3
1
4
8
5
30
6
97
7
374
8
2185
9
7399
10
60475
11
303535
12
2332720
13
16630294
14
41419087
15
599216396
[1,1,1,8,30,97,374,2185,7399,60475,303535,2332720, 16630294,41419087,599216396]