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A075735 as a simple table

na(n)
11
21
321
434
555
6377
74181
86765
917711
10121393
11196418
12317811
131346269
142178309
155702887
16102334155
17165580141
1832951280099
1953316291173
20139583862445
21956722026041
222504730781961
2310610209857723
24308061521170129

[1,1,21,34,55,377,4181,6765,17711,121393,196418,
 317811,1346269,2178309,5702887,102334155,
 165580141,32951280099,53316291173,139583862445,
 956722026041,2504730781961,10610209857723,
 308061521170129]