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A006925 as a simple table

na(n)
00
10
20
30
40
51
62
78
848
9450
105751
1190553
121612905
1331297357
14652159389
1514499780660
16342646718608

[0,0,0,0,0,1,2,8,48,450,5751,90553,1612905,
 31297357,652159389,14499780660,342646718608]