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A028474 as a simple table

na(n)
01
11
2233
32131
4145601
52332097
6106912793
72188978117
882741005829
91937528668711
1065743732590821
111666961188795475
1253060477521960000
131412218550274852671
1443242613716069407953
151185802123987680144427
1635457442115448212075033
17990424779934371836605849

[1,1,233,2131,145601,2332097,106912793,2188978117,
 82741005829,1937528668711,65743732590821,
 1666961188795475,53060477521960000,
 1412218550274852671,43242613716069407953,
 1185802123987680144427,35457442115448212075033,
 990424779934371836605849]