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A022047 as a simple table

na(n)
01
1480
229152
3525952
43994080
518626112
667978880
7197120256
8509145568
91143441760
102428524096
114658843520
128705492608
1315000919872
1425593401600
1540864033536
1665187410400
1798098623936
18148724365664
19213678303360
20310833534528
21430766443520
22605650030464
23813970121472

[1,480,29152,525952,3994080,18626112,67978880,
 197120256,509145568,1143441760,2428524096,
 4658843520,8705492608,15000919872,25593401600,
 40864033536,65187410400,98098623936,148724365664,
 213678303360,310833534528,430766443520,
 605650030464,813970121472]