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A264203 as a simple table

na(n)
181
21024
314641
4202500
52825761
639337984
7547981281
87632119044
9106302733681
101480602240000
1120622143227921
12287229348456964
134000588938543681
1455721015032152064
15776093624344221121
1610809589715215402500

[81,1024,14641,202500,2825761,39337984,547981281,
 7632119044,106302733681,1480602240000,
 20622143227921,287229348456964,4000588938543681,
 55721015032152064,776093624344221121,
 10809589715215402500]