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A355766 as a simple table

na(n)
01
11
28
3126
43028
598540
64056948
7202301456
811855415920
9798682318848
1060823290655680
115167260183157248
12484519323081722784
1349705696509114472320
145537956421036240838336
15665926312161296782156800
1685960998514145805006711552

[1,1,8,126,3028,98540,4056948,202301456,
 11855415920,798682318848,60823290655680,
 5167260183157248,484519323081722784,
 49705696509114472320,5537956421036240838336,
 665926312161296782156800,
 85960998514145805006711552]