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A110951 as a simple table

na(n)
30
42
510
6117
71218
88544
9102528
101073328
1113174560
12167191920
132194456320
1434592423040
15566748161280
168894849241600
17159020867174400
183016954215475200
1959837217568128000
201189832713214745600

[0,2,10,117,1218,8544,102528,1073328,13174560,
 167191920,2194456320,34592423040,566748161280,
 8894849241600,159020867174400,3016954215475200,
 59837217568128000,1189832713214745600]