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A208803 as a simple table

na(n)
11
24
317
4136
51073
610372
7105147
81111859
911969879
10132339307
111483656527
1216847824961
13193620920219
142242918877972
1526215739119341
16308466499187272
173650953780091983
1843460429194159752
19519724194908777521
206242649556702436466

[1,4,17,136,1073,10372,105147,1111859,11969879,
 132339307,1483656527,16847824961,193620920219,
 2242918877972,26215739119341,308466499187272,
 3650953780091983,43460429194159752,
 519724194908777521,6242649556702436466]