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A218727 as a simple table

na(n)
00
11
225
3601
414425
5346201
68308825
7199411801
84785883225
9114861197401
102756668737625
1166160049703001
121587841192872025
1338108188628928601
14914596527094286425
1521950316650262874201
16526807599606308980825
1712643382390551415539801
18303441177373233972955225

[0,1,25,601,14425,346201,8308825,199411801,
 4785883225,114861197401,2756668737625,
 66160049703001,1587841192872025,38108188628928601,
 914596527094286425,21950316650262874201,
 526807599606308980825,12643382390551415539801,
 303441177373233972955225]