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A001229 as a simple table

na(n)
11
22
38
412
5128
6240
7720
86912
932768
10142560
11712800
121140480
131190400
143345408
153571200
165702400
1714859936
1829719872
1950319360
20118879488
212147483648
223889036800
234389396480
2421946982400
2547416320000
2692177326080
27133145026560
28331914240000
29460886630400
30665725132800

[1,2,8,12,128,240,720,6912,32768,142560,712800,
 1140480,1190400,3345408,3571200,5702400,14859936,
 29719872,50319360,118879488,2147483648,3889036800,
 4389396480,21946982400,47416320000,92177326080,
 133145026560,331914240000,460886630400,
 665725132800]