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A209080 as a simple table

na(n)
01
120
2400
31702
48659
549401
6287740
71934794
811569093
965443733
10360231372
111872156836

[1,20,400,1702,8659,49401,287740,1934794,11569093,
 65443733,360231372,1872156836]