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A245141 as a simple table

na(n)
01
13
250
31626
483736
56026120
6571350096
767996818960
89862902275456
91700092943088768
10342087177215788800
1179115601821198404352
1220779757607847901690880
136133520505473954148381696
142017134796016735182500521984
15733523863838078950241395968000

[1,3,50,1626,83736,6026120,571350096,67996818960,
 9862902275456,1700092943088768,342087177215788800,
 79115601821198404352,20779757607847901690880,
 6133520505473954148381696,
 2017134796016735182500521984,
 733523863838078950241395968000]