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A127548 as a simple table

na(n)
01
11
20
31
44
519
6112
7771
86088
954213
10537392
115867925
1269975308
13904788263
1412607819040
15188341689287
163002539594128
1750878366664393
18913161208490016
1917304836525709097
20345279674107957524
217235298537356113339

[1,1,0,1,4,19,112,771,6088,54213,537392,5867925,
 69975308,904788263,12607819040,188341689287,
 3002539594128,50878366664393,913161208490016,
 17304836525709097,345279674107957524,
 7235298537356113339]