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A069150 as a simple table

na(n)
11
21
32
424
5720
64480
73628800
81925
9479001600
10387459072
1120922789888000
126402373705728000
135516784599040000
141124000727777607680000
15135277939046250
1624817936069329577574400
17553211880832106496000000

[1,1,2,24,720,4480,3628800,1925,479001600,
 387459072,20922789888000,6402373705728000,
 5516784599040000,1124000727777607680000,
 135277939046250,24817936069329577574400,
 553211880832106496000000]