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A057545 as a simple table

na(n)
01
11
22
33
46
56
624
772
8144
9147
10588
11672
122136
1310152
1411520
1529484
16117936
17270576
18656352
192062368
204040160

[1,1,2,3,6,6,24,72,144,147,588,672,2136,10152,
 11520,29484,117936,270576,656352,2062368,4040160]