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A170909 as a simple table

na(n)
01
11
22
33
424
515
6360
75040
840320
911340
101814400
1139916800
1247900160
136227020800
147925299200
151307674368000
1620922789888000
1711115232128000
183201186852864000
1924329020081766400
2048658040163532800
2151090942171709440000
221124000727777607680000
235170403347776995328000

[1,1,2,3,24,15,360,5040,40320,11340,1814400,
 39916800,47900160,6227020800,7925299200,
 1307674368000,20922789888000,11115232128000,
 3201186852864000,24329020081766400,
 48658040163532800,51090942171709440000,
 1124000727777607680000,5170403347776995328000]