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A127394 as a simple table

na(n)
14
218
388
4460
52544
614776
789632
8565392
93695680
1024959776
11173752704
121244125888
139146568448
1468933546880
15531838104064
164195358822656
1733800254620672
18277843218452992
192328182040156160
2019870770461838336
21172610363453599744
221525013813211609088

[4,18,88,460,2544,14776,89632,565392,3695680,
 24959776,173752704,1244125888,9146568448,
 68933546880,531838104064,4195358822656,
 33800254620672,277843218452992,2328182040156160,
 19870770461838336,172610363453599744,
 1525013813211609088]