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A020340 as a simple table

na(n)
236
34
4378225
57056
614393520729
716
89
9557904400
101322314049613223140496
1136
12613401598811409576100
13321418490709904
14837225
1516
167535664872989640713426833504575377836025
1736
1816900
19100
207112889

[36,4,378225,7056,14393520729,16,9,557904400,
 1322314049613223140496,36,613401598811409576100,
 321418490709904,837225,16,
 7535664872989640713426833504575377836025,36,16900,
 100,7112889]