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A089421 as a simple table

na(n)
01
11
21
32
43
59
622
771
8217
9729
102438
118440
1229414
13104138
14371516
151337649
164847637
1717680265
1864823110
19238824212
20883634026

[1,1,1,2,3,9,22,71,217,729,2438,8440,29414,104138,
 371516,1337649,4847637,17680265,64823110,
 238824212,883634026]