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A131537
as a simple table
n
a(n)
0
0
1
5
2
25
3
83
4
219
5
221
6
2270
7
11020
8
18843
9
192915
10
271978
11
743748
12
1039315
13
13873203
14
14060685
[0,5,25,83,219,221,2270,11020,18843,192915,271978, 743748,1039315,13873203,14060685]