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A193489 as a simple table

na(n)
10
20
30
40
50
61
71
87
913
1055
11127
12435
131110
143458
159261
1627460
1775305
18217619
19603618
201720712
214799095
2213580179
2337979149
24107045222
25299800569
26843242264
272363693561
286641675073
2918628827667
3052325428340

[0,0,0,0,0,1,1,7,13,55,127,435,1110,3458,9261,
 27460,75305,217619,603618,1720712,4799095,
 13580179,37979149,107045222,299800569,843242264,
 2363693561,6641675073,18628827667,52325428340]