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A247746 as a simple table

na(n)
00
10
20
34
452
5532
64772
744624
8413332
93704668
1032312456
11277318708
122365831332
1320023322874
14168065885292
151401084600204
1611617827516556
1795910742322858
18788559509624036
196459527069162538
2052742304806108492
21429408151732020490
223487057360672870112

[0,0,0,4,52,532,4772,44624,413332,3704668,
 32312456,277318708,2365831332,20023322874,
 168065885292,1401084600204,11617827516556,
 95910742322858,788559509624036,6459527069162538,
 52742304806108492,429408151732020490,
 3487057360672870112]