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A233407
as a simple table
n
a(n)
1
42
2
293
3
2543
4
21765
5
216088
6
1283251
7
11808072
8
70311171
9
571963910
10
3520539997
[42,293,2543,21765,216088,1283251,11808072, 70311171,571963910,3520539997]