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A217021 as a simple table

na(n)
10
216
33456
412931216
5655816458528
6473216230511351044
74822507485300347026181088
8695298786420085228281048744405924
91417923660297801516897331705897083237291008

[0,16,3456,12931216,655816458528,
 473216230511351044,4822507485300347026181088,
 695298786420085228281048744405924,
 1417923660297801516897331705897083237291008]