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A213813 as a simple table

na(n)
10
21
332
49770
5205832
632463802
7966656134
8102283239429
93913787773536
10328076475659033
1114746957510647992
121076226888605605706
1353540340738182687296
143593066312119675283778
15190433654636776931262392
1612142048779807437697982030
17669350612142203868221516908

[0,1,32,9770,205832,32463802,966656134,
 102283239429,3913787773536,328076475659033,
 14746957510647992,1076226888605605706,
 53540340738182687296,3593066312119675283778,
 190433654636776931262392,
 12142048779807437697982030,
 669350612142203868221516908]