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A162770 as a simple table

na(n)
02
17
222
372
4232
5752
62432
77872
825472
982432
10266752
11863232
122793472
139039872
1429253632
1594666752
16306348032
17991363072
183208118272
1910381688832
2033595850752
21108718456832
22351820316672
231138514460672
243684310188032

[2,7,22,72,232,752,2432,7872,25472,82432,266752,
 863232,2793472,9039872,29253632,94666752,
 306348032,991363072,3208118272,10381688832,
 33595850752,108718456832,351820316672,
 1138514460672,3684310188032]