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A245248 as a simple table

na(n)
01
11
26
342
4408
55328
684960
71600128
834957440
9868247424
1024152048640
11744116855040
1225155056424960
13925729237969920
1436842642690181120
151576774342552872960
1672212210263605657600
173523820406525504552960
18182532196288859620147200
1910003033225361632653803520

[1,1,6,42,408,5328,84960,1600128,34957440,
 868247424,24152048640,744116855040,25155056424960,
 925729237969920,36842642690181120,
 1576774342552872960,72212210263605657600,
 3523820406525504552960,182532196288859620147200,
 10003033225361632653803520]