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A330419 as a simple table

na(n)
11
20
31
42
59
622
7109
8390
92249
1010006
1153540
12207218
13967733
143587686
1514902072
1656388126
17220066307
18867528322
193324603126
2013719108983

[1,0,1,2,9,22,109,390,2249,10006,53540,207218,
 967733,3587686,14902072,56388126,220066307,
 867528322,3324603126,13719108983]