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A021384 as a simple table

na(n)
01
118
2225
32470
425701
5261378
62632345
726400990
8264329901
92644608538
1026451412065
11264535693110
122645444018101
1326454790920498
14264549319337385
152645498855426830
1626455011267050301
17264550203715341258

[1,18,225,2470,25701,261378,2632345,26400990,
 264329901,2644608538,26451412065,264535693110,
 2645444018101,26454790920498,264549319337385,
 2645498855426830,26455011267050301,
 264550203715341258]