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A147222
as a simple table
n
a(n)
1
1
2
1
3
1
4
1
5
1
6
21
7
45
8
251
9
1189
10
5949
11
38111
12
398367
13
3732199
[1,1,1,1,1,21,45,251,1189,5949,38111,398367, 3732199]
