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A237773 as a simple table

na(n)
1300
21456
37220
434738
5168120
6843310
74176684
820234876
998488592
10490709904
112423229752
1211787571072
1357592668148
14285613778928
151407652995368
166867790813994
1733631458148732
18166268484651892
19818421568319140

[300,1456,7220,34738,168120,843310,4176684,
 20234876,98488592,490709904,2423229752,
 11787571072,57592668148,285613778928,
 1407652995368,6867790813994,33631458148732,
 166268484651892,818421568319140]