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A203725 as a simple table

na(n)
12278
212470
358048
4230014
5808455
62572189
77508980
820395251
951998196
10125414516
11287825519
12631806642
131332124235
142708040628
155324902859
1610157044643
1718841255222
1834065603378
1960151407191
20103913751089

[2278,12470,58048,230014,808455,2572189,7508980,
 20395251,51998196,125414516,287825519,631806642,
 1332124235,2708040628,5324902859,10157044643,
 18841255222,34065603378,60151407191,103913751089]