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A126466 as a simple table

na(n)
01
11
23
333
4855
540475
63039204
7331630320
849563943161
99722245517970
102423526680920125
11748560249534719259
12280702726068079355157
13125661789748507921799800
1466215986172320048509110050

[1,1,3,33,855,40475,3039204,331630320,49563943161,
 9722245517970,2423526680920125,748560249534719259,
 280702726068079355157,125661789748507921799800,
 66215986172320048509110050]