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A212564 as a simple table

na(n)
00
10
20
33
416
548
6114
7229
8416
9696
101100
111655
122400
133368
144606
156153
168064
1710384
1813176
1916491
2020400
2124960
2230250
2336333
2443296
2551208
2660164
2770239
2881536
2994136
30108150
31123665
32140800
33159648
34180336
35202963
36227664
37254544
38283746
39315381

[0,0,0,3,16,48,114,229,416,696,1100,1655,2400,
 3368,4606,6153,8064,10384,13176,16491,20400,24960,
 30250,36333,43296,51208,60164,70239,81536,94136,
 108150,123665,140800,159648,180336,202963,227664,
 254544,283746,315381]