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A162356 as a simple table

na(n)
02
19
244
3226
41192
56372
634288
7185096
81000736
95414544
1029306048
11158644768
12858873472
134649961024
1425175459584
15136304222336
16737977344512
173995559643392
1821632794323968
19117124519584256
20634137036138496

[2,9,44,226,1192,6372,34288,185096,1000736,
 5414544,29306048,158644768,858873472,4649961024,
 25175459584,136304222336,737977344512,
 3995559643392,21632794323968,117124519584256,
 634137036138496]