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A053733 as a simple table

na(n)
10
20
30
40
50
60
70
80
91
101
115
1219
1355
14143
15334
16715
171430
182702
194862
208398
2113997
2222610
2335530
2454480
2581719
26120175
27173587
28246675
29345345
30476905
31650325
32876525
331168700
341542684
352017356
362615092
373362260
384289780
395433722

[0,0,0,0,0,0,0,0,1,1,5,19,55,143,334,715,1430,
 2702,4862,8398,13997,22610,35530,54480,81719,
 120175,173587,246675,345345,476905,650325,876525,
 1168700,1542684,2017356,2615092,3362260,4289780,
 5433722]