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A271717 as a simple table

na(n)
19
211664
336864
438134
5345744
61750329
74782969
820820969
947775744
1065804544
1195004009
12150994944
13448084224
14733055625
151093955625
161416167424

[9,11664,36864,38134,345744,1750329,4782969,
 20820969,47775744,65804544,95004009,150994944,
 448084224,733055625,1093955625,1416167424]