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A014484 as a simple table

na(n)
01
110
2112
31440
421120
5349440
66451200
7131604480
82941747200
971530905600
101880240947200
1153137244160000
121606870263398400
1351776930709504000
141771128112545792000
1564103411041173504000

[1,10,112,1440,21120,349440,6451200,131604480,
 2941747200,71530905600,1880240947200,
 53137244160000,1606870263398400,51776930709504000,
 1771128112545792000,64103411041173504000]