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A203228 as a simple table

na(n)
11
23
320
4492
559328
642750720
7215488512000
88688622215168000
93152932286024908800000
1011441362514460661304524800000
11456702585875829909265192058880000000
12218761269624450195162273767321763840000000000

[1,3,20,492,59328,42750720,215488512000,
 8688622215168000,3152932286024908800000,
 11441362514460661304524800000,
 456702585875829909265192058880000000,
 218761269624450195162273767321763840000000000]