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A225796 as a simple table

na(n)
11
212
3456
4415416
5194191194192
63816727961538167279616
735270249819024056401913527024981902405640192

[1,12,456,415416,194191194192,
 3816727961538167279616,
 35270249819024056401913527024981902405640192]