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A194349 as a simple table

na(n)
11
22
35
424
5129
6960
77965
880640
9903105
1011612160
11163451925
122554675200
1343259364225
14797058662400
1515764670046125
16334764638208000
177571150452490625
18182111963185152000
194634731528895593125
20124564582818643968000

[1,2,5,24,129,960,7965,80640,903105,11612160,
 163451925,2554675200,43259364225,797058662400,
 15764670046125,334764638208000,7571150452490625,
 182111963185152000,4634731528895593125,
 124564582818643968000]