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A077612 as a simple table

na(n)
10
20
30
412
548
6720
74320
860480
9483840
107257600
1172576000
121197504000
1314370048000
14261534873600
153661488230400
1673229764608000
171171676233728000
1825609494822912000
19460970906812416000
2010948059036794880000
21218961180735897600000
225620003638888038400000

[0,0,0,12,48,720,4320,60480,483840,7257600,
 72576000,1197504000,14370048000,261534873600,
 3661488230400,73229764608000,1171676233728000,
 25609494822912000,460970906812416000,
 10948059036794880000,218961180735897600000,
 5620003638888038400000]