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A203317 as a simple table

na(n)
11
22
38
4256
510240
63440640
71233125376
84058744094720
9286551971651911680
1013351029463205868994560
1118128348229848045861669437440
1280945830355202461675325011924090880
13223346912509970707926726595810215906508800

[1,2,8,256,10240,3440640,1233125376,4058744094720,
 286551971651911680,13351029463205868994560,
 18128348229848045861669437440,
 80945830355202461675325011924090880,
 223346912509970707926726595810215906508800]