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A203851 as a simple table

na(n)
01
11
23
317
486
5674
65604
755236
8579648
97302816
1095738400
111391181120
1221792119040
13366215610240
146581045197440
15126809720795520
162559529594782720
1754828458042158080
181242024477363855360
1929351942535941867520
20729546143909048524800

[1,1,3,17,86,674,5604,55236,579648,7302816,
 95738400,1391181120,21792119040,366215610240,
 6581045197440,126809720795520,2559529594782720,
 54828458042158080,1242024477363855360,
 29351942535941867520,729546143909048524800]