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A047176 as a simple table

na(n)
10
20
30
40
50
62
73
815
920
1060
1175
12175
13210
14435
15511
161071
171260
182940
193510
208910
2110725
2227345
2332835
2480795
2596382
26230230
27273273
28649805
29770315
301860131
312208115
325426995
336451500
3415974220

[0,0,0,0,0,2,3,15,20,60,75,175,210,435,511,1071,
 1260,2940,3510,8910,10725,27345,32835,80795,96382,
 230230,273273,649805,770315,1860131,2208115,
 5426995,6451500,15974220]