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A054557 as a simple table

na(n)
572
64824
732256
8127008
9378000
10940464
112062368
124115232
137629336
1413333320
1522198176
1635485632
1754800928
1882149984
19120000960
20171350208
21239792616
22329596344
23445781952
24594205920
25781648560
261015906320
271305888480

[72,4824,32256,127008,378000,940464,2062368,
 4115232,7629336,13333320,22198176,35485632,
 54800928,82149984,120000960,171350208,239792616,
 329596344,445781952,594205920,781648560,
 1015906320,1305888480]