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A125475 as a simple table

na(n)
01
118
2252
33168
444472
5634368
69124092
7131601852
81900243080
927449395092
10396572715092
115729777752772
1282786984432932
131196161590550776
1417282993079833922
15249717254801438778
163608098064502340024

[1,18,252,3168,44472,634368,9124092,131601852,
 1900243080,27449395092,396572715092,5729777752772,
 82786984432932,1196161590550776,17282993079833922,
 249717254801438778,3608098064502340024]