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A056467 as a simple table

na(n)
10
20
30
40
50
60
70
80
90
100
11720
12720
1315120
1415120
15191520
16191520
171905120
181905120
1916435440
2016435440
21129230640
22129229920
23953029440
24953028720
256711344640
266711329520
2745674188560
2845674173440
29302899156560
30302898965040
311969147121760
321969146930240

[0,0,0,0,0,0,0,0,0,0,720,720,15120,15120,191520,
 191520,1905120,1905120,16435440,16435440,
 129230640,129229920,953029440,953028720,
 6711344640,6711329520,45674188560,45674173440,
 302899156560,302898965040,1969147121760,
 1969146930240]