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A002899 as a simple table

na(n)
01
10
212
348
4540
54320
642240
7403200
84038300
940958400
10423550512
114434978240
1246982827584
13502437551616
145417597053440
1558831951546368
16642874989479580
177063600894137216
1877991775777488144
19864910651813116480

[1,0,12,48,540,4320,42240,403200,4038300,40958400,
 423550512,4434978240,46982827584,502437551616,
 5417597053440,58831951546368,642874989479580,
 7063600894137216,77991775777488144,
 864910651813116480]