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A012543 as a simple table

na(n)
01
10
212
3240
415120
51355520
6182229696
733914060544
88338432876800
92621544212398080
101025337444571630592
11488344333262321119232
12278250960368816815149056
13186888075247900824522915840

[1,0,12,240,15120,1355520,182229696,33914060544,
 8338432876800,2621544212398080,
 1025337444571630592,488344333262321119232,
 278250960368816815149056,
 186888075247900824522915840]