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A281788 as a simple table

na(n)
10
23
36656
41574235
5109234176
63489819540
765281655808
8825351571995
97736349470720
1057270269768634
11350259092774400
121829670576438068
138372440970643456
1434226453991167880
15126958657929489408
16432721923827171355
171369171676955783168
184056082931864408991
1911330441127202890240
2030026115193307387658
2175874353000273633280
22183636989491548765276

[0,3,6656,1574235,109234176,3489819540,
 65281655808,825351571995,7736349470720,
 57270269768634,350259092774400,1829670576438068,
 8372440970643456,34226453991167880,
 126958657929489408,432721923827171355,
 1369171676955783168,4056082931864408991,
 11330441127202890240,30026115193307387658,
 75874353000273633280,183636989491548765276]