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A154028 as a simple table

na(n)
00
11
21
31
43
52
66
76
810
924
1015
11120
1221
13720
1428
155040
1636
1740320
1845
19362880
2055
213628800
2266
2339916800
2478
25479001600
2691
276227020800
28105
2987178291200
30120
311307674368000
32136
3320922789888000
34153
35355687428096000
36171

[0,1,1,1,3,2,6,6,10,24,15,120,21,720,28,5040,36,
 40320,45,362880,55,3628800,66,39916800,78,
 479001600,91,6227020800,105,87178291200,120,
 1307674368000,136,20922789888000,153,
 355687428096000,171]