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A018920 as a simple table

na(n)
03
110
233
3108
4353
51153
63766
712300
840172
9131202
10428506
111399501
124570771
1314928140
1448755311
15159234864
16520061125
171698519827
185547366384
1918117700664
2059172417076
21193257136076
22631177877968
232061427183105
246732621943159
2521988745758766

[3,10,33,108,353,1153,3766,12300,40172,131202,
 428506,1399501,4570771,14928140,48755311,
 159234864,520061125,1698519827,5547366384,
 18117700664,59172417076,193257136076,631177877968,
 2061427183105,6732621943159,21988745758766]