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A084191 as a simple table

na(n)
11
21
31
42
53
636
710
860
921
10157080
1136
122394591020640
13330
14438900
15702
16185640
17105
18392201962392240
19680
2047347883887966200
21450574740
223183089069160
23210

[1,1,1,2,3,36,10,60,21,157080,36,2394591020640,
 330,438900,702,185640,105,392201962392240,680,
 47347883887966200,450574740,3183089069160,210]