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A091746 as a simple table

na(n)
11
230
312
41
52700
61920
7426
836
91
10491400
11478800
12162540
1325344
141956
1572
161
17150368400
18181440000
1980451000
2017624880
212130660
22147840
235820
24120
251
2669470200800
2798424849600
2852905560400
2914618016000
302346624000
31232202880

[1,30,12,1,2700,1920,426,36,1,491400,478800,
 162540,25344,1956,72,1,150368400,181440000,
 80451000,17624880,2130660,147840,5820,120,1,
 69470200800,98424849600,52905560400,14618016000,
 2346624000,232202880]