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A120972 as a simple table

na(n)
01
11
23
321
4217
52814
642510
7718647
813270944
9263532276
105567092665
11124143735663
122905528740060
1371058906460091
141809695198254281
1547861102278428198
161311488806252697283
1737164457324943708739

[1,1,3,21,217,2814,42510,718647,13270944,
 263532276,5567092665,124143735663,2905528740060,
 71058906460091,1809695198254281,47861102278428198,
 1311488806252697283,37164457324943708739]