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A134646 as a simple table

na(n)
10
22
331
41344
5111920
616214000
73758757240
81310799454720
9655551508577280
10452647176631372800
11418399785559398720000
12504669505260741099417600
13777461035821119354357452800
141501959201213688265322501427200

[0,2,31,1344,111920,16214000,3758757240,
 1310799454720,655551508577280,452647176631372800,
 418399785559398720000,504669505260741099417600,
 777461035821119354357452800,
 1501959201213688265322501427200]