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A037653 as a simple table

na(n)
13
212
350
4203
5812
63250
713003
852012
9208050
10832203
113328812
1213315250
1353261003
14213044012
15852176050
163408704203
1713634816812
1854539267250
19218157069003
20872628276012
213490513104050
2213962052416203
2355848209664812

[3,12,50,203,812,3250,13003,52012,208050,832203,
 3328812,13315250,53261003,213044012,852176050,
 3408704203,13634816812,54539267250,218157069003,
 872628276012,3490513104050,13962052416203,
 55848209664812]