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A006603 as a simple table

na(n)
01
12
27
326
4107
5468
62141
710124
849101
9242934
101221427
116222838
1232056215
13166690696
14873798681
154612654808
1624499322137
17130830894666
18702037771647
193783431872018
2020469182526595
21111133368084892
22605312629105205
233306633429423460
2418111655081108453

[1,2,7,26,107,468,2141,10124,49101,242934,1221427,
 6222838,32056215,166690696,873798681,4612654808,
 24499322137,130830894666,702037771647,
 3783431872018,20469182526595,111133368084892,
 605312629105205,3306633429423460,
 18111655081108453]