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A111401 as a simple table

na(n)
00
11
240
32674398
439044429911904441284800
510934377152170553993439479038404269881062854488806451946716107868799042109068

[0,1,40,2674398,39044429911904441284800,
 10934377152170553993439479038404269881062854488806\
 451946716107868799042109068]