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A024187 as a simple table

na(n)
17
247
3342
42754
524552
6241128
72592720
830334320
9383970240
105231113920
1176349105280
121188825724800
1319675048780800

[7,47,342,2754,24552,241128,2592720,30334320,
 383970240,5231113920,76349105280,1188825724800,
 19675048780800]