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A054337 as a simple table

na(n)
01
128
2448
35376
453760
5473088
63784704
728114944
8196804608
91312030720
108396996608
1151908706304
12311452237824
131820797698048
1410404558274560
1558265526337536
16320460394856448
171734256254517248
189249366690758656
1948680877319782400
20253140562062868480

[1,28,448,5376,53760,473088,3784704,28114944,
 196804608,1312030720,8396996608,51908706304,
 311452237824,1820797698048,10404558274560,
 58265526337536,320460394856448,1734256254517248,
 9249366690758656,48680877319782400,
 253140562062868480]