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A136588 as a simple table

na(n)
01
11
22
321
4124
51880
620046
7391419
86195288
9147481299
103121373690
1187790122816
122329580861268
1375790954533385
142415630777959686
1589478235732836705
163323789119614522416
17138402773923330655700

[1,1,2,21,124,1880,20046,391419,6195288,147481299,
 3121373690,87790122816,2329580861268,
 75790954533385,2415630777959686,89478235732836705,
 3323789119614522416,138402773923330655700]