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A180670 as a simple table

na(n)
00
10
21
39
442
5140
6383
7925
82056
94316
108705
1117069
1232810
1362192
14116743
15217673
16404000
17747496
181380177
192544865
204688186
218631620
2215886111
2329230725
2453776968
2598926372
26181971057
27334716197
28615660634
291132400520

[0,0,1,9,42,140,383,925,2056,4316,8705,17069,
 32810,62192,116743,217673,404000,747496,1380177,
 2544865,4688186,8631620,15886111,29230725,
 53776968,98926372,181971057,334716197,615660634,
 1132400520]