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A078232
as a simple table
n
a(n)
1
2
2
22
3
352
4
23232
5
255552
6
23255232
7
232575575232
8
22327255222272
9
33575272735753772255232
[2,22,352,23232,255552,23255232,232575575232, 22327255222272,33575272735753772255232]