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A075473 as a simple table

na(n)
00
10
20
31
430
5653
613762
7304295
87251598
9187783369
105287733418
11161516858963
125332258661782
13189493508862461
147219703867130466
15293780009979371503
1612721918893479808030
17584361555380576356625
1828385640762100638931546

[0,0,0,1,30,653,13762,304295,7251598,187783369,
 5287733418,161516858963,5332258661782,
 189493508862461,7219703867130466,
 293780009979371503,12721918893479808030,
 584361555380576356625,28385640762100638931546]