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A098625 as a simple table

na(n)
01
10
22
34
439
5228
62400
723616
8307692
94197408
1067658769
111174316570
1222916090131
13482946085932

[1,0,2,4,39,228,2400,23616,307692,4197408,
 67658769,1174316570,22916090131,482946085932]