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A185134 as a simple table

na(n)
00
10
20
31
42
55
621
7103
8752
97385
1091939
111345933
1222170664
13401399440
147887389438
15166897766824
163781593764772

[0,0,0,1,2,5,21,103,752,7385,91939,1345933,
 22170664,401399440,7887389438,166897766824,
 3781593764772]