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A283954 as a simple table

na(n)
10
20
38184
4283208
58244557
6241796070
76763514843
8182198176994
94825164796310
10125933665031272
113244468947083396
1282767450195612832
132094459557648313968
1452635795570355253222
151315036944531836311688
1632688961006164835305772

[0,0,8184,283208,8244557,241796070,6763514843,
 182198176994,4825164796310,125933665031272,
 3244468947083396,82767450195612832,
 2094459557648313968,52635795570355253222,
 1315036944531836311688,32688961006164835305772]