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A168593 as a simple table

na(n)
01
13
227
3349
45484
596408
61824758
736393090
8754696998
916130052394
10353134333470
117884110379006
12178908263232959
134115917059924057
1495806493175049929
152252809457441037107
1653443567449376649304

[1,3,27,349,5484,96408,1824758,36393090,754696998,
 16130052394,353134333470,7884110379006,
 178908263232959,4115917059924057,
 95806493175049929,2252809457441037107,
 53443567449376649304]