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A299706
as a simple table
n
a(n)
1
0
2
17
3
325
4
4858
5
64741
6
808950
7
9706567
8
113236940
9
1294080089
10
14557915466
[0,17,325,4858,64741,808950,9706567,113236940, 1294080089,14557915466]