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A155648 as a simple table

na(n)
01
115
2135
31215
411295
5107775
61046655
710279935
8101679615
91010077695
1010060466175
11100362797055
121002176782335
1310013060694015
14100078364164095
151000470184984575
1610002821109907455
17100016926659444735

[1,15,135,1215,11295,107775,1046655,10279935,
 101679615,1010077695,10060466175,100362797055,
 1002176782335,10013060694015,100078364164095,
 1000470184984575,10002821109907455,
 100016926659444735]