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A189049 as a simple table

na(n)
224
324
4960
5160
68064
7896
830720
94608
10337920
1122528
1267092480
13106496
14688128
15491520
16267386880
172228224
181882718208
199961472
203460300800
2144040192
226366953472
23192937984
24549621596160
25838860800

[24,24,960,160,8064,896,30720,4608,337920,22528,
 67092480,106496,688128,491520,267386880,2228224,
 1882718208,9961472,3460300800,44040192,6366953472,
 192937984,549621596160,838860800]