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A239578 as a simple table

na(n)
11
26
32
43
524
65
74
87
910
101080
1135640
1211
139
1413
158
1633
17297600
1817
19588
2019
2120
221782
231907020800
2423
25216
2645
2734
2878

[1,6,2,3,24,5,4,7,10,1080,35640,11,9,13,8,33,
 297600,17,588,19,20,1782,1907020800,23,216,45,34,
 78]