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A277457 as a simple table

na(n)
01
13
212
371
4616
57197
6105052
71829291
836922928
9846851993
1021744781684
11617832652527
1219242299657896
13651815827343189
1423857403245171724
15938247816632341043
1639455261828928309088
171766645684585351990961
1883913998998426051745764
194214295288128637488870327
20223120214856875472660345176

[1,3,12,71,616,7197,105052,1829291,36922928,
 846851993,21744781684,617832652527,19242299657896,
 651815827343189,23857403245171724,
 938247816632341043,39455261828928309088,
 1766645684585351990961,83913998998426051745764,
 4214295288128637488870327,
 223120214856875472660345176]