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A020022 as a simple table

na(n)
01
10
21
32
45
524
6131
7843
86275
952988
10500442
115226842
1259818300
13744405515
1410008118595
15144561713037
162232675345794
1736715105686391
18640474621418148
1911813198572823623
20229701083360459334
214696111037591613052

[1,0,1,2,5,24,131,843,6275,52988,500442,5226842,
 59818300,744405515,10008118595,144561713037,
 2232675345794,36715105686391,640474621418148,
 11813198572823623,229701083360459334,
 4696111037591613052]