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A071800 as a simple table

na(n)
154
226550
314330736
48264889270
54978317147804
63090501687886704
71961313438507566400
81265749551338006549430
9827693426702217868006500
10547017649101008848332870300
11364691794467483796757326646400
12244920478151771001164678945670000

[54,26550,14330736,8264889270,4978317147804,
 3090501687886704,1961313438507566400,
 1265749551338006549430,827693426702217868006500,
 547017649101008848332870300,
 364691794467483796757326646400,
 244920478151771001164678945670000]