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A168493 as a simple table

na(n)
01
11
29
381
46561
5531441
6387420489
7282429536481
81853020188851841
912157665459056928801
10717897987691852588770249
1142391158275216203514294433201
1222528399544939174411840147874772641
1311972515182562019788602740026717047105681

[1,1,9,81,6561,531441,387420489,282429536481,
 1853020188851841,12157665459056928801,
 717897987691852588770249,
 42391158275216203514294433201,
 22528399544939174411840147874772641,
 11972515182562019788602740026717047105681]