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A337249 as a simple table

na(n)
11
23
344
4710
51420
62130
72840
8312689
910838702
106167950454
1121053343141
1263160029423
13105266715705

[1,3,44,710,1420,2130,2840,312689,10838702,
 6167950454,21053343141,63160029423,105266715705]