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A060637 as a simple table

na(n)
01
12
21
34
42
51
68
76
82
91
1016
1124
128
132
141
1532
16120
1762
1810
192
201
2164
22720
23908
24148
2512
262
271
28128
295040
3024698
317686
32338
3314
342
351
36256
3740320
381232944

[1,2,1,4,2,1,8,6,2,1,16,24,8,2,1,32,120,62,10,2,1,
 64,720,908,148,12,2,1,128,5040,24698,7686,338,14,
 2,1,256,40320,1232944]