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A231199 as a simple table

na(n)
19
267
367
4538
51413
6538
74264
831665
931665
104264
1133868
12704428
132001156
14704428
1533868
16268936
1715698874
18125862699
19125862699
2015698874
21268936
222135636
23349736292
247925306181
2522370911245
267925306181
27349736292
282135636
2916959144

[9,67,67,538,1413,538,4264,31665,31665,4264,33868,
 704428,2001156,704428,33868,268936,15698874,
 125862699,125862699,15698874,268936,2135636,
 349736292,7925306181,22370911245,7925306181,
 349736292,2135636,16959144]