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A028350 as a simple table

na(n)
-1-1
06
1210
212012
3831402
463740820
55209363380
6444799488600
739209074920090
83541117629057540
9325969196485349340
1030471769822097981160
112884881686418189303300
12276043232874562618320072

[-1,6,210,12012,831402,63740820,5209363380,
 444799488600,39209074920090,3541117629057540,
 325969196485349340,30471769822097981160,
 2884881686418189303300,276043232874562618320072]