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A064224 as a simple table

na(n)
1120
2210
3720
45040
5175560
617297280
719958400
8259459200
920274183401472000
1025852016738884976640000
11368406749739154248105984000000

[120,210,720,5040,175560,17297280,19958400,
 259459200,20274183401472000,
 25852016738884976640000,
 368406749739154248105984000000]