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A300398
as a simple table
n
a(n)
1
3
2
26
3
253
4
2515
5
25007
6
250110
7
2500209
8
25000135
9
250002220
10
2500000243
11
25000027724
12
250000009260
[3,26,253,2515,25007,250110,2500209,25000135, 250002220,2500000243,25000027724,250000009260]