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A199318 as a simple table

na(n)
04
119
2109
3649
43889
523329
6139969
7839809
85038849
930233089
10181398529
111088391169
126530347009
1339182082049
14235092492289
151410554953729
168463329722369
1750779978334209
18304679870005249
191828079220031489
2010968475320188929

[4,19,109,649,3889,23329,139969,839809,5038849,
 30233089,181398529,1088391169,6530347009,
 39182082049,235092492289,1410554953729,
 8463329722369,50779978334209,304679870005249,
 1828079220031489,10968475320188929]