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A199925 as a simple table

na(n)
10
20
30
41
52
64
78
814
925
1045
1180
12142
13253
14450
15800
161423
172531
184501
198005
2014237
2125320
2245031
2380087
24142433
25253314
26450514
27801230
281424971
292534282
304507169
318015908
3214256129
3325354235
3445091990
3580195185
36142625502
37253656548

[0,0,0,1,2,4,8,14,25,45,80,142,253,450,800,1423,
 2531,4501,8005,14237,25320,45031,80087,142433,
 253314,450514,801230,1424971,2534282,4507169,
 8015908,14256129,25354235,45091990,80195185,
 142625502,253656548]