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A272122 as a simple table

na(n)
11
21
32
44
58
620
740
8120
9288
10864
111728
124800
139600
1428800
1584480
16304128
17608256
182322432
199289728
2040642560
21116121600
22348364800
23696729600
243185049600
258918138880
2626754416640
27149824733184
28624269721600
291248539443200
306522981580800
3126091926323200
32107629196083200

[1,1,2,4,8,20,40,120,288,864,1728,4800,9600,28800,
 84480,304128,608256,2322432,9289728,40642560,
 116121600,348364800,696729600,3185049600,
 8918138880,26754416640,149824733184,624269721600,
 1248539443200,6522981580800,26091926323200,
 107629196083200]