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A109745 as a simple table

na(n)
112
224
384
4120
5270
6672
71488
81638
96200
1024384
11174592
12523776
1344736512
1491963648
15100651008
16459818240
171476304896
1810200236032
1925769607168
2051001180160
21412316073984

[12,24,84,120,270,672,1488,1638,6200,24384,174592,
 523776,44736512,91963648,100651008,459818240,
 1476304896,10200236032,25769607168,51001180160,
 412316073984]