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A356568 as a simple table

na(n)
00
13
2240
345927
416711680
59990234375
68913923665920
711111328602485167
818446462598732840960
939346257980661240576303
10104857500000000000000000000
11341427795961470170556885610263
121333735697353436921058237339402240
136156119488473827117528057630000587767

[0,3,240,45927,16711680,9990234375,8913923665920,
 11111328602485167,18446462598732840960,
 39346257980661240576303,
 104857500000000000000000000,
 341427795961470170556885610263,
 1333735697353436921058237339402240,
 6156119488473827117528057630000587767]