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A168520 as a simple table

na(n)
10
210
3980
496030
59409960
6922080050
790354434940
88853812544070
9867583274883920
1085014307126080090
118330534515080964900
12816307368170808480110
1379989791546224150085880
147838183264161795899936130
15768061970096309774043654860
1675262234886174196060378240150

[0,10,980,96030,9409960,922080050,90354434940,
 8853812544070,867583274883920,85014307126080090,
 8330534515080964900,816307368170808480110,
 79989791546224150085880,7838183264161795899936130,
 768061970096309774043654860,
 75262234886174196060378240150]