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A231466 as a simple table

na(n)
17
215
3100
4311
51709
67973
737494
8207123
91039577
105801570
1132328791
12180333889
131052960813
146036980691
1535461369867
16208542506549
171227636956922
187289753229789
1943168317190255
20256712609867030
211527296174594552

[7,15,100,311,1709,7973,37494,207123,1039577,
 5801570,32328791,180333889,1052960813,6036980691,
 35461369867,208542506549,1227636956922,
 7289753229789,43168317190255,256712609867030,
 1527296174594552]