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A040082 as a simple table

na(n)
11
21
31
42
52
622
7564
81676267
9115618721533
10208904371354363006
1112216177315369229261482540

[1,1,1,2,2,22,564,1676267,115618721533,
 208904371354363006,12216177315369229261482540]