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A271503 as a simple table

na(n)
11
21
32
46
52
6120
72
8210
92
101890
112
1283160
132
14270270
152
164054050
172
18275675400
192
201309458150
212
2227498621150
232
242529873145800
252
2615811707161250
272
28426916093353750
292
3049522266829035000
312
32383797567925021250
332
3412665319741525701250
352

[1,1,2,6,2,120,2,210,2,1890,2,83160,2,270270,2,
 4054050,2,275675400,2,1309458150,2,27498621150,2,
 2529873145800,2,15811707161250,2,426916093353750,
 2,49522266829035000,2,383797567925021250,2,
 12665319741525701250,2]