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A038846 as a simple table

na(n)
01
116
2160
31280
48960
557344
6344064
71966080
810813440
957671680
10299892736
111526726656
127633633280
1337580963840
14182536110080
15876173328384
164161823309824
1719585050869760
1891396904058880
19423311976693760
201947235092791296
218901646138474496
2240462027902156800

[1,16,160,1280,8960,57344,344064,1966080,10813440,
 57671680,299892736,1526726656,7633633280,
 37580963840,182536110080,876173328384,
 4161823309824,19585050869760,91396904058880,
 423311976693760,1947235092791296,8901646138474496,
 40462027902156800]