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A075210 as a simple table

na(n)
10
20
30
41
59
639
7197
8721
92717
108211
1119836
1274497
13132611
14403534
151127416
162364402
174173316
1815604400
1921318428
2073965916
21154211880

[0,0,0,1,9,39,197,721,2717,8211,19836,74497,
 132611,403534,1127416,2364402,4173316,15604400,
 21318428,73965916,154211880]